A012092 sinh(arcsin(arctan(x)))=x+4/5!*x^5-32/7!*x^7+1936/9!*x^9-67328/11!*x^11...

1, 0, 4, -32, 1936, -67328, 4140096, 353591808, -262064131840, 130347373404160, -65058714844462080, 36397620373403361280, -23130160076947953643520, 16791590408623398030868480

Offset

0,3

Links

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

Mathematica

With[{nn=30}, Take[CoefficientList[Series[Sinh[ArcSin[ArcTan[x]]], {x, 0, nn}], x] Range[0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Mar 12 2016 *)

Crossrefs

Sequence in context: A053005 A257583 A258122 * A367530 A336304 A027639

Adjacent sequences: A012089 A012090 A012091 * A012093 A012094 A012095

Keyword

sign

Author

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

Status

approved