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A009673 Expansion of tan(sin(x)*x). 1
0, 2, -4, 246, -6728, 614890, -55387212, 8450249822, -1527219657616, 372125006557650, -109398463655126420, 39693749843486489542, -17074884680310522056664, 8684084243275368565840826 (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 ]*x ] (* Even Part *)

CROSSREFS

Sequence in context: A110067 A145996 A005275 * A018770 A260755 A173566

Adjacent sequences:  A009670 A009671 A009672 * A009674 A009675 A009676

KEYWORD

sign

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs by Olivier Gérard, Mar 15 1997

STATUS

approved

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Last modified January 22 10:32 EST 2019. Contains 319363 sequences. (Running on oeis4.)