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Search: id:A012552
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A012552 sec(sinh(x)*tan(x))=1+12/4!*x^4+360/6!*x^6+21392/8!*x^8... +0
1
1, 0, 12, 360, 21392, 2157120, 312620352, 62372069760, 16405335464192, 5496449323898880, 2285903378752576512, 1155546066959150254080, 697824091645377743654912, 496179920290601448240168960 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A012429 A012631 A002674 this_sequence A012385 A012430 A012632

Adjacent sequences: A012549 A012550 A012551 this_sequence A012553 A012554 A012555

KEYWORD

nonn

AUTHOR

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

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.

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