A013350 sech(sin(x)-arcsin(x))=1-40/6!*x^6-896/8!*x^8-62304/10!*x^10...

1, 0, 0, -40, -896, -62304, -5050496, -734950528, -138858307584, -35484086513152, -11376927751841792, -4526992734620571648, -2178753470207843827712, -1249669173876982577029120

Offset

0,4

Links

Table of n, a(n) for n=0..13.

Crossrefs

Sequence in context: A190825 A054340 A271030 * A013346 A013348 A013349

Adjacent sequences: A013347 A013348 A013349 * A013351 A013352 A013353

Keyword

sign

Author

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

Status

approved