A024260 Expansion of tan(sinh(x))*sin(x)/2.

0, 1, 4, 84, 3104, 182992, 15879616, 1899519552, 299663676416, 60275691043072, 15056174185477120, 4572421127353660416, 1659109785538909134848, 708889217194131401101312, 352281692447248422944948224

Offset

0,3

Links

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

Mathematica

Tan[ Sinh[ x ] ]*Sin[ x ]/2 (* Even Part *)

Crossrefs

A009682.

Sequence in context: A024259 A357672 A361542 * A099706 A012065 A012139

Adjacent sequences: A024257 A024258 A024259 * A024261 A024262 A024263

Keyword

nonn

Author

R. H. Hardin

Extensions

Extended and signs tested 03/97.

Status

approved