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A009668 Expansion of tan(sin(x))/cos(x). 0
1, 4, 32, 432, 10752, 504832, 35418112, 3115462656, 333569720320, 44698511474688, 7574890049699840, 1575934549490139136, 387157222106970718208, 110017544405171642040320 (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 ] ]/Cos[ x ] (* Odd Part *)

CROSSREFS

Sequence in context: A322735 A140178 A088991 * A005121 A327379 A214379

Adjacent sequences: A009665 A009666 A009667 * A009669 A009670 A009671

KEYWORD

nonn

AUTHOR

R. H. Hardin

EXTENSIONS

Extended and signs tested Mar 15 1997 by Olivier Gérard.

STATUS

approved

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Last modified December 2 20:59 EST 2022. Contains 358510 sequences. (Running on oeis4.)