Take the 2-minute tour ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

What would be general term for the following sequence:

$1, 13, 205, 4245, 114345, 3919860, 167310360,...$

I tried looking on oeis, It appears this is OEIS A059355:

No recurrence or formula is given.

I tried to induce, but couldn't find an answer. Any help will be appreciated. Even a recurrence would do.

Apparently this series represents coefficients from fractional iteration of $e^{x} - 1$

share|improve this question

closed as too localized by Steve D, Lord_Farin, Mark Bennet, anorton, Alexander Gruber Jun 13 '13 at 15:45

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

What does this represent? or is it just a brainteaser? –  anorton Jun 13 '13 at 1:05
oeis.org/A059355 ?? –  Calvin Lin Jun 13 '13 at 1:07
Similar post on MO was closed, turned up after googling for those values. –  Calvin Lin Jun 13 '13 at 1:08
@swapedoc Can you check if this sequence is also from codechef, since it's generated by this user? –  Calvin Lin Jun 13 '13 at 1:15
@Alicia, please accept anorton's answer, as this answered your original question. –  vadim123 Jun 13 '13 at 1:54

1 Answer 1

It appears this is OEIS A059355:

$1, 13, 205, 4245, 114345, 3919860, 167310360, 8719666200, 545594049000, 40394317194000, 3494634235092000, 349446163958892000, 40005208010427660000, 5199553600938496800000, 761551300698921532800000$

No recurrence or formula is given.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.