A013306 Numerator of [x^n] of the Taylor series arccosh(exp(x) - arcsin(x)).

1, 0, 0, -1, 0, -1, -1, -344, -2, -7733, -4873, -10514857, -3449, -738707, -71666467, -129310473049, -35839, -19576627, -45715711199, -866367643482931, -572765895007711, -274989109970083277, -266112669025361017

Offset

1,8

Links

Table of n, a(n) for n=1..23.

Prog

(PARI) x = 'x + O('x^30); apply(x->numerator(x), Vec((acosh(exp(x) - asin(x))))) \\ Michel Marcus, Sep 20 2018

Crossrefs

Sequence in context: A222460 A013787 A013844 * A044878 A085336 A236090

Adjacent sequences: A013303 A013304 A013305 * A013307 A013308 A013309

Keyword

sign

Author

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

Extensions

Values replaced by numerators and offset corrected by Sean A. Irvine, Aug 05 2018

Status

approved