What is the next term of this sequence?












3












$begingroup$


What is the next number?



$$2,3,10,12,13,20,?$$










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$endgroup$












  • $begingroup$
    Please cite the source of this puzzle. (A quick Google search shows this isn't your own puzzle)
    $endgroup$
    – Greg
    Jan 25 at 14:24






  • 1




    $begingroup$
    @Greg well, it was a math teacher I had 5 years ago that told me, I picked it up from there... do I need to cite him as a source?
    $endgroup$
    – J. Dionisio
    Jan 25 at 14:26






  • 1




    $begingroup$
    Ahh, in that case, I would say no.
    $endgroup$
    – Greg
    Jan 25 at 14:27
















3












$begingroup$


What is the next number?



$$2,3,10,12,13,20,?$$










share|improve this question









$endgroup$












  • $begingroup$
    Please cite the source of this puzzle. (A quick Google search shows this isn't your own puzzle)
    $endgroup$
    – Greg
    Jan 25 at 14:24






  • 1




    $begingroup$
    @Greg well, it was a math teacher I had 5 years ago that told me, I picked it up from there... do I need to cite him as a source?
    $endgroup$
    – J. Dionisio
    Jan 25 at 14:26






  • 1




    $begingroup$
    Ahh, in that case, I would say no.
    $endgroup$
    – Greg
    Jan 25 at 14:27














3












3








3





$begingroup$


What is the next number?



$$2,3,10,12,13,20,?$$










share|improve this question









$endgroup$




What is the next number?



$$2,3,10,12,13,20,?$$







mathematics pattern number-sequence






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Jan 25 at 14:21









J. DionisioJ. Dionisio

1007




1007












  • $begingroup$
    Please cite the source of this puzzle. (A quick Google search shows this isn't your own puzzle)
    $endgroup$
    – Greg
    Jan 25 at 14:24






  • 1




    $begingroup$
    @Greg well, it was a math teacher I had 5 years ago that told me, I picked it up from there... do I need to cite him as a source?
    $endgroup$
    – J. Dionisio
    Jan 25 at 14:26






  • 1




    $begingroup$
    Ahh, in that case, I would say no.
    $endgroup$
    – Greg
    Jan 25 at 14:27


















  • $begingroup$
    Please cite the source of this puzzle. (A quick Google search shows this isn't your own puzzle)
    $endgroup$
    – Greg
    Jan 25 at 14:24






  • 1




    $begingroup$
    @Greg well, it was a math teacher I had 5 years ago that told me, I picked it up from there... do I need to cite him as a source?
    $endgroup$
    – J. Dionisio
    Jan 25 at 14:26






  • 1




    $begingroup$
    Ahh, in that case, I would say no.
    $endgroup$
    – Greg
    Jan 25 at 14:27
















$begingroup$
Please cite the source of this puzzle. (A quick Google search shows this isn't your own puzzle)
$endgroup$
– Greg
Jan 25 at 14:24




$begingroup$
Please cite the source of this puzzle. (A quick Google search shows this isn't your own puzzle)
$endgroup$
– Greg
Jan 25 at 14:24




1




1




$begingroup$
@Greg well, it was a math teacher I had 5 years ago that told me, I picked it up from there... do I need to cite him as a source?
$endgroup$
– J. Dionisio
Jan 25 at 14:26




$begingroup$
@Greg well, it was a math teacher I had 5 years ago that told me, I picked it up from there... do I need to cite him as a source?
$endgroup$
– J. Dionisio
Jan 25 at 14:26




1




1




$begingroup$
Ahh, in that case, I would say no.
$endgroup$
– Greg
Jan 25 at 14:27




$begingroup$
Ahh, in that case, I would say no.
$endgroup$
– Greg
Jan 25 at 14:27










1 Answer
1






active

oldest

votes


















6












$begingroup$

My guess is:




21




because




the list is all numbers whose name begins with 't'







share|improve this answer









$endgroup$













  • $begingroup$
    dang it, that was quick! Adapted it from my language, where the sequence would be: $$2,10,12,16,17,18,19,200$$
    $endgroup$
    – J. Dionisio
    Jan 25 at 14:24













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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









6












$begingroup$

My guess is:




21




because




the list is all numbers whose name begins with 't'







share|improve this answer









$endgroup$













  • $begingroup$
    dang it, that was quick! Adapted it from my language, where the sequence would be: $$2,10,12,16,17,18,19,200$$
    $endgroup$
    – J. Dionisio
    Jan 25 at 14:24


















6












$begingroup$

My guess is:




21




because




the list is all numbers whose name begins with 't'







share|improve this answer









$endgroup$













  • $begingroup$
    dang it, that was quick! Adapted it from my language, where the sequence would be: $$2,10,12,16,17,18,19,200$$
    $endgroup$
    – J. Dionisio
    Jan 25 at 14:24
















6












6








6





$begingroup$

My guess is:




21




because




the list is all numbers whose name begins with 't'







share|improve this answer









$endgroup$



My guess is:




21




because




the list is all numbers whose name begins with 't'








share|improve this answer












share|improve this answer



share|improve this answer










answered Jan 25 at 14:23









TwoBitOperationTwoBitOperation

6,99811157




6,99811157












  • $begingroup$
    dang it, that was quick! Adapted it from my language, where the sequence would be: $$2,10,12,16,17,18,19,200$$
    $endgroup$
    – J. Dionisio
    Jan 25 at 14:24




















  • $begingroup$
    dang it, that was quick! Adapted it from my language, where the sequence would be: $$2,10,12,16,17,18,19,200$$
    $endgroup$
    – J. Dionisio
    Jan 25 at 14:24


















$begingroup$
dang it, that was quick! Adapted it from my language, where the sequence would be: $$2,10,12,16,17,18,19,200$$
$endgroup$
– J. Dionisio
Jan 25 at 14:24






$begingroup$
dang it, that was quick! Adapted it from my language, where the sequence would be: $$2,10,12,16,17,18,19,200$$
$endgroup$
– J. Dionisio
Jan 25 at 14:24




















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