A012715 Expansion of e.g.f. sinh(arctanh(x) * exp(x)).

0, 1, 2, 6, 24, 160, 1120, 9296, 79744, 791232, 8303488, 98662784, 1234416128, 17090231808, 247660907520, 3911062116352, 64395491606528, 1142963925405696, 21081499860049920, 415641154415091712

Offset

0,3

Links

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

Example

x + 2/2!*x^2 + 6/3!*x^3 + 24/4!*x^4 + 160/5!*x^5 ...

Crossrefs

Sequence in context: A013010 A275955 A009608 * A038205 A012361 A308111

Adjacent sequences: A012712 A012713 A012714 * A012716 A012717 A012718

Keyword

nonn

Author

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

Extensions

a(0) inserted and title improved by Sean A. Irvine, Jul 24 2018

Status

approved