A012095 arctanh(arcsin(arctan(x))) = x + 1/3!*x^3 + 17/5!*x^5 + 225/7!*x^7 + 19745/9!*x^9 + ...

1, 1, 17, 225, 19745, 613889, 165999025, 6543673313, 5318503266369, 97941778159361, 473023280425720657, -24807619116269601823, 96456947558141320688993, -18191159887705677530042623, 39579539155416746718880624881, -15661645517509146973335115013919

Offset

0,3

Links

Table of n, a(n) for n=0..15.

Crossrefs

Sequence in context: A081044 A016227 A155001 * A296999 A140842 A087608

Adjacent sequences: A012092 A012093 A012094 * A012096 A012097 A012098

Keyword

sign

Author

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

Status

approved