A009814 Expansion of tanh(tan(x)*exp(x)).

0, 1, 2, 3, -12, -163, -1178, -4529, 27496, 870169, 11481482, 85659387, -308661540, -25105525963, -525814629650, -6328753571321, -1529929548080, 2300980143865777, 71594692481521682, 1258339660640728947

Offset

0,3

Links

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

Mathematica

Tanh[ Tan[ x ]*Exp[ x ] ]

Crossrefs

Sequence in context: A132501 A067338 A012713 * A362289 A345040 A196378

Adjacent sequences: A009811 A009812 A009813 * A009815 A009816 A009817

Keyword

sign,easy

Author

R. H. Hardin

Extensions

Extended with signs by Olivier Gérard, Mar 15 1997

Status

approved