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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
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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 August 30 00:57 EDT 2024. Contains 375520 sequences. (Running on oeis4.)