A013385 cosh(sin(x)-tanh(x))=1+10/6!*x^6-840/8!*x^8+60870/10!*x^10...

1, 0, 0, 10, -840, 60870, -4949780, 484684330, -57168678320, 7957246947790, -1270811040444460, 224172849477365650, -40867049294767840200, 6397467145495026664310, 40199264206917072158460

Offset

0,4

Links

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

Mathematica

With[{nn=30}, Take[CoefficientList[Series[Cosh[Sin[x]-Tanh[x]], {x, 0, nn}], x] Range[0, nn]!, {1, -1, 2}]] (* Harvey P. Dale, Feb 25 2015 *)

Crossrefs

Sequence in context: A396354 A378324 A013386 * A013383 A013387 A013438

Adjacent sequences: A013382 A013383 A013384 * A013386 A013387 A013388

Keyword

sign

Author

Patrick Demichel

Status

approved