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

Author

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

Keywords

• sign

Programs

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 *)