A012823 arcsin(sec(x)*arcsinh(x))=x+3/3!*x^3+53/5!*x^5+1855/7!*x^7...

1, 3, 53, 1855, 156425, 19537595, 3987121981, 1087120051511, 408148372272017, 193531749818796403, 116081047496759766725, 84538055378229508493871, 74205177566923695709271961

Offset

0,2

Links

Table of n, a(n) for n=0..12.

Crossrefs

Sequence in context: A216931 A352992 A012742 * A098932 A100444 A300420

Adjacent sequences: A012820 A012821 A012822 * A012824 A012825 A012826

Keyword

nonn

Author

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

Status

approved