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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
OFFSET
0,2
CROSSREFS
Sequence in context: A222922 A268048 A271516 * A012737 A370298 A077299
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved