A012179 sinh(tan(arctanh(x)))=x+5/3!*x^3+121/5!*x^5+6621/7!*x^7+636337/9!*x^9...

1, 5, 121, 6621, 636337, 94260341, 19853570985, 5628171840461, 2063430523313761, 949149114720943077, 534861693803619166681, 362197405161801586405565, 290099119826974859032451601

Offset

0,2

Links

Table of n, a(n) for n=0..12.

Crossrefs

Sequence in context: A108791 A282271 A179299 * A012026 A012190 A012077

Adjacent sequences: A012176 A012177 A012178 * A012180 A012181 A012182

Keyword

nonn

Author

Patrick Demichel

Status

approved