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A013358
sec(sin(x)-tan(x))=1+90/6!*x^6+2520/8!*x^8+126630/10!*x^10...
0
1, 0, 0, 90, 2520, 126630, 14717340, 1887655770, 305757138960, 67501799476110, 18267050784481380, 5925845719351577250, 2313597977247058464600, 1064286603125099115824790
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OFFSET
0,4
LINKS
Table of n, a(n) for n=0..13.
CROSSREFS
Sequence in context:
A013359
A013355
A013357
*
A013414
A013413
A013411
Adjacent sequences:
A013355
A013356
A013357
*
A013359
A013360
A013361
KEYWORD
nonn
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved
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Last modified August 18 23:41 EDT 2024. Contains 375284 sequences. (Running on oeis4.)