A012096 cosh(arcsin(arctan(x)))=1+1/2!*x^2-3/4!*x^4+69/6!*x^6-2503/8!*x^8...

1, 1, -3, 69, -2503, 177481, -18539595, 2813939725, -573509386895, 152349815266705, -50966873710838675, 20993994712780457685, -10435138367654204994135, 6159973489221376775016665

Offset

0,3

Links

Table of n, a(n) for n=0..13.

Crossrefs

Sequence in context: A089455 A012201 A284058 * A012074 A350720 A247031

Adjacent sequences: A012093 A012094 A012095 * A012097 A012098 A012099

Keyword

sign

Author

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

Status

approved