A009740 Expansion of tan(x)*sin(sin(x)).

0, 2, 0, 88, 704, 50464, 2089216, 173223040, 16120801280, 2032098365952, 311227464130560, 58380271774087168, 13053338796582584320, 3439281363674203889664, 1053729213379599495528448

Offset

0,2

Links

Table of n, a(n) for n=0..14.

Mathematica

Tan[ x ]*Sin[ Sin[ x ] ] (* Even Part *)

Crossrefs

Sequence in context: A156490 A216678 A136559 * A132860 A156485 A307946

Adjacent sequences: A009737 A009738 A009739 * A009741 A009742 A009743

Keyword

nonn

Author

R. H. Hardin

Extensions

Extended and signs tested Mar 15 1997 by Olivier Gérard.

Status

approved