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A012421
sin(arctan(x)*sin(x))=2/2!*x^2-12/4!*x^4+70/6!*x^6+2856/8!*x^8...
0
2, -12, 70, 2856, -406262, 53106460, -8809933106, 1910193704272, -531575014780398, 185190064964692804, -78983931548861495466, 40480351020220065079928, -24547642682771502545050854
OFFSET
0,1
CROSSREFS
Sequence in context: A143357 A357831 A012426 * A012381 A012376 A223763
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved