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A012499 tan(cos(x)*arctan(x))=x-3/3!*x^3-35/5!*x^5+1729/7!*x^7-12711/9!*x^9... 0
1, -3, -35, 1729, -12711, -5819099, 581423349, 26066838953, -19485197470415, 2379630157273805, 789057561743200397, -445703452244142678255, 25928070972710765150345, 80008658408138506870433013 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

CROSSREFS

Sequence in context: A136556 A006098 A320845 * A125530 A334253 A068726

Adjacent sequences:  A012496 A012497 A012498 * A012500 A012501 A012502

KEYWORD

sign

AUTHOR

Patrick Demichel (patrick.demichel(AT)hp.com)

STATUS

approved

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Last modified September 24 05:51 EDT 2020. Contains 337317 sequences. (Running on oeis4.)