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A012543 sec(sinh(x)*arcsin(x))=1+12/4!*x^4+240/6!*x^6+15120/8!*x^8... 0
1, 0, 12, 240, 15120, 1355520, 182229696, 33914060544, 8338432876800, 2621544212398080, 1025337444571630592, 488344333262321119232, 278250960368816815149056, 186888075247900824522915840 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

CROSSREFS

Sequence in context: A174556 A012349 A012302 * A012350 A126687 A064749

Adjacent sequences:  A012540 A012541 A012542 * A012544 A012545 A012546

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 06:46 EST 2012. Contains 205867 sequences.