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A012160
sin(tan(arcsinh(x)))=x-4/5!*x^5-136/7!*x^7+272/9!*x^9-222016/11!*x^11...
0
1, 0, -4, -136, 272, -222016, 21267520, -3836913536, 874251520256, -254117293340672, 92635637659667456, -41075111126460016640, 21845766688887149694976, -13711633858766326011314176
OFFSET
0,3
MATHEMATICA
With[{nn=30}, Take[CoefficientList[Series[Sin[Tan[ArcSinh[x]]], {x, 0, nn}], x] Range[ 0, nn-1]!, {2, -1, 2}]] (* Harvey P. Dale, Apr 22 2022 *)
CROSSREFS
Sequence in context: A006429 A016483 A102986 * A012197 A202299 A024264
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved