A013383 cos(sin(x)-tanh(x))=1-10/6!*x^6+840/8!*x^8-60870/10!*x^10...

1, 0, 0, -10, 840, -60870, 4980580, -501501130, 63445348720, -10063325322190, 1976669210391260, -472760236462102450, 135256173623772004200, -45534410854433395672310, 17782334849654204122443540

Offset

0,4

Links

Table of n, a(n) for n=0..14.

Mathematica

With[{nn=30}, Take[CoefficientList[Series[Cos[Sin[x]-Tanh[x]], {x, 0, nn}], x]Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Feb 16 2012 *)

Crossrefs

Sequence in context: A378324 A013386 A013385 * A013387 A013438 A013434

Adjacent sequences: A013380 A013381 A013382 * A013384 A013385 A013386

Keyword

sign

Author

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

Status

approved