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A012412 cos(arctan(x)*exp(x))=1-1/2!*x^2-6/3!*x^3-15/4!*x^4+20/5!*x^5... 0
1, 0, -1, -6, -15, 20, 255, 70, -3423, 46728, 501375, -3625358, -60112239, 420430556, 9211149311, -79037179650, -2033765765567, 18361020368016, 572833991092479, -5418169914165654, -201869115241158607 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..20.

CROSSREFS

Sequence in context: A162693 A056901 A208542 * A009092 A330205 A015793

Adjacent sequences:  A012409 A012410 A012411 * A012413 A012414 A012415

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified September 25 06:32 EDT 2020. Contains 337335 sequences. (Running on oeis4.)