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A012603 cos(arcsinh(x)*arcsin(x))=1-12/4!*x^4-3248/8!*x^8-19157952/12!*x^12... 0
1, -12, -3248, -19157952, -518516045568, -41950819968248832, -7989124180734318489600, -3074627327620950467600302080, -2150601092109458094146556003287040 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..8.

CROSSREFS

Sequence in context: A222922 A268048 A271516 * A012737 A077299 A077749

Adjacent sequences: A012600 A012601 A012602 * A012604 A012605 A012606

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified February 3 08:31 EST 2023. Contains 360034 sequences. (Running on oeis4.)