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A009727 Expansion of tan(x)*cos(sin(x)). 0
1, -1, 21, 27, 6121, 153559, 13064637, 996722035, 114653539281, 15657589156655, 2678537704263781, 548432789294290763, 133426766351448919481, 37955932970963263679495, 12491453691407386059683341 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

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

MATHEMATICA

Tan[ x ]*Cos[ Sin[ x ] ] (* Odd Part *)

CROSSREFS

Sequence in context: A114168 A103083 A120735 * A168105 A227936 A048012

Adjacent sequences:  A009724 A009725 A009726 * A009728 A009729 A009730

KEYWORD

sign

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs by Olivier Gérard, Mar 15 1997

STATUS

approved

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Last modified October 19 00:36 EDT 2018. Contains 316327 sequences. (Running on oeis4.)