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Search: id:A012685
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A012685 cosh(tanh(x)*arctan(x))=1+12/4!*x^4-480/6!*x^6+28560/8!*x^8... +0
2
1, 0, 12, -480, 28560, -2595840, 342910656, -62365675008, 14932846506240, -4548435497041920, 1716639310480919552, -786314410657025941504, 429828791337549223596032, -276479195899367035140833280 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A012681 A009168 A012460 this_sequence A012465 A012394 A012686

Adjacent sequences: A012682 A012683 A012684 this_sequence A012686 A012687 A012688

KEYWORD

sign

AUTHOR

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

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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