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A013054
sec(sinh(x)+tan(x))=1+4/2!*x^2+104/4!*x^4+6598/6!*x^6+778200/8!*x^8...
0
1, 4, 104, 6598, 778200, 147293306, 40870375036, 15634022134518, 7885949713950992, 5071562424714844978, 4050326064394675777988, 3932747393021585152266894, 4562459896809464230996563288
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OFFSET
0,2
LINKS
Table of n, a(n) for n=0..12.
CROSSREFS
Sequence in context:
A326284
A302733
A098696
*
A024262
A012958
A012984
Adjacent sequences:
A013051
A013052
A013053
*
A013055
A013056
A013057
KEYWORD
nonn
AUTHOR
Patrick Demichel (patrick.demichel(AT)hp.com)
STATUS
approved
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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)