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Search: id:A012819
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A012819 sec(sec(x)*sinh(x))=1+1/2!*x^2+21/4!*x^4+837/6!*x^6+60585/8!*x^8... +0
1
1, 1, 21, 837, 60585, 7048489, 1201350909, 282008557677, 87244033155153, 34402407033544657, 16843665951415524837, 10025536600336492439061, 7129473645057562412172537, 5969969671887834658217008633 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Adjacent sequences: A012816 A012817 A012818 this_sequence A012820 A012821 A012822

Sequence in context: A012645 A028469 A119414 this_sequence A041843 A041840 A012793

KEYWORD

nonn

AUTHOR

Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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