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A009742 Expansion of tan(x)*sin(tan(x)). 1
0, 2, 12, 118, 536, -116246, -16364252, -2126232482, -306170653648, -50385573229614, -9466502482856388, -2005520046878244794, -469486134481963893176, -117587958866855549958726 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

MATHEMATICA

Tan[ x ]*Sin[ Tan[ x ] ] (* Even Part *)

CROSSREFS

Sequence in context: A214222 A012628 A012623 * A121425 A132692 A009546

Adjacent sequences:  A009739 A009740 A009741 * A009743 A009744 A009745

KEYWORD

sign

AUTHOR

R. H. Hardin

EXTENSIONS

Extended with signs Mar 15 1997 by Olivier Gerard.

STATUS

approved

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Last modified May 23 08:43 EDT 2013. Contains 225585 sequences.