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A009669 Expansion of tan(sin(x))/cosh(x). 0
1, -2, 12, -296, 8208, -317088, 22384832, -1922265216, 200049877248, -28532108907008, 4916900759571456, -987493645187344384, 241526023834975735808, -69201642972421758361600 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..13.

MATHEMATICA

Tan[ Sin[ x ] ]/Cosh[ x ] (* Odd Part *)

CROSSREFS

Sequence in context: A008338 A000178 A108395 * A202729 A012380 A012377

Adjacent sequences:  A009666 A009667 A009668 * A009670 A009671 A009672

KEYWORD

sign

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs Mar 15 1997 by Olivier Gérard.

STATUS

approved

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Last modified December 5 07:41 EST 2016. Contains 278761 sequences.