A012361 Expansion of e.g.f. arcsin(tan(x) * exp(x)).

0, 1, 2, 6, 24, 160, 1312, 13496, 162624, 2282880, 36300032, 646542336, 12732724224, 274854736000, 6451455453952, 163604692933376, 4457345570893824, 129841475781611520, 4026939664026755072, 132480317530158575616, 4607985167132525543424

Offset

0,3

Links

Table of n, a(n) for n=0..20.

Example

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

Crossrefs

Sequence in context: A009608 A012715 A038205 * A308111 A121773 A304996

Adjacent sequences: A012358 A012359 A012360 * A012362 A012363 A012364

Keyword

nonn

Author

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

Extensions

a(0) inserted and title improved by Sean A. Irvine, Jul 18 2018

Status

approved