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A013350 sech(sin(x)-arcsin(x))=1-40/6!*x^6-896/8!*x^8-62304/10!*x^10... 0
1, 0, 0, -40, -896, -62304, -5050496, -734950528, -138858307584, -35484086513152, -11376927751841792, -4526992734620571648, -2178753470207843827712, -1249669173876982577029120 (list; graph; refs; listen; history; text; internal format)
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

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Last modified May 26 11:08 EDT 2022. Contains 354086 sequences. (Running on oeis4.)