A260879 Coefficients in asymptotic expansion of sequence A229741.

1, 2, 8, 44, 288, 2148, 17816, 161852, 1594280, 16911940, 192361656, 2340735564, 30460211400, 424505682772, 6355333371032, 102649319717020, 1797042119668552, 34229646342692388, 710605915340085240, 16058830502126670956, 393461778913536741064

Offset

0,2

Links

Vaclav Kotesovec, Table of n, a(n) for n = 0..110

Formula

Conjecture: a(k) ~ (k-1)! / (log(2))^k.

Example

A229741(n) / n! ~ 1 + 2/n + 8/n^2 + 44/n^3 + 288/n^4 + 2148/n^5 + ...

Crossrefs

Cf. A229741.

Sequence in context: A201374 A120928 A286425 * A179489 A240165 A357832

Adjacent sequences: A260876 A260877 A260878 * A260880 A260881 A260882

Keyword

nonn

Author

Vaclav Kotesovec, Aug 02 2015

Status

approved