A013123 Expansion of e.g.f. sinh(tanh(x) + log(x+1)).

0, 2, -1, 8, -30, 102, -735, 6036, -43372, 366666, -3909645, 43735936, -509688234, 6614683246, -93752033739, 1403126034316, -22351107663000, 380878785320338, -6864318972384345, 130206659362724728

Offset

0,2

Links

Table of n, a(n) for n=0..19.

Example

2*x - 1/2!*x^2 + 8/3!*x^3 - 30/4!*x^4 + 102/5!*x^5 ...

Crossrefs

Sequence in context: A110742 A252355 A366404 * A012965 A013119 A012962

Adjacent sequences: A013120 A013121 A013122 * A013124 A013125 A013126

Keyword

sign

Author

Patrick Demichel (patrick.demichel(AT)hp.com)

Extensions

a(0)=0 inserted and title improved by Sean A. Irvine, Jul 31 2018

Status

approved