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A012563
cosh(sinh(x)*arctan(x))=1+12/4!*x^4-120/6!*x^6+8400/8!*x^8...
0
1, 0, 12, -120, 8400, -600000, 73313856, -12123226752, 2695239655680, -769790431168512, 275082505104161792, -120207067043213252608, 63066575428691877122048, -39120958138480154972405760
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OFFSET
0,3
LINKS
Table of n, a(n) for n=0..13.
CROSSREFS
Sequence in context:
A009164
A012436
A012619
*
A301898
A012441
A012373
Adjacent sequences:
A012560
A012561
A012562
*
A012564
A012565
A012566
KEYWORD
sign
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved
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Last modified April 17 23:23 EDT 2024. Contains 371767 sequences. (Running on oeis4.)