A013427 cosh(arcsin(x)-tanh(x))=1+90/6!*x^6-1176/8!*x^8+185094/10!*x^10...

1, 0, 0, 90, -1176, 185094, 530772, 1636156522, 170829306928, 60742435952974, 18173279227072940, 7353969776707569554, 3655980234829231451912, 2065776616635942000462390, 1427955074795894359873706436, 1109745897830641117410245879226

Offset

0,4

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..25

Mathematica

With[{nn=30}, Take[CoefficientList[Series[Cosh[ArcSin[x]-Tanh[x]], {x, 0, nn}], x] Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Jul 23 2014 *)

Crossrefs

Sequence in context: A124167 A223364 A048548 * A013425 A013428 A013429

Adjacent sequences: A013424 A013425 A013426 * A013428 A013429 A013430

Keyword

sign

Author

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

Extensions

More terms from Harvey P. Dale, Jul 23 2014

Status

approved