A012490 cosh(cos(x)*arcsin(x))=1+1/2!*x^2-7/4!*x^4+25/6!*x^6+1297/8!*x^8...

1, 1, -7, 25, 1297, 785, 3237577, 476552297, 93536269473, 25410713978785, 8498142387238425, 3493252199008249913, 1729861042158836509361, 1015648464575702746171825, 697882405841324552721582569

Offset

0,3

Links

Table of n, a(n) for n=0..14.

Crossrefs

Sequence in context: A214593 A342584 A335498 * A354478 A157702 A063453

Adjacent sequences: A012487 A012488 A012489 * A012491 A012492 A012493

Keyword

sign

Author

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

Status

approved