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Search: id:A013102
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A013102 sech(arcsinh(x)+tan(x))=1-4/2!*x^2+72/4!*x^4-3414/6!*x^6... +0
1
1, -4, 72, -3414, 304696, -43757114, 9229955724, -2685455642198, 1030584093889104, -504321546504212914, 306492028524272596724, -226465717137080425353646, 199935485865217931345463224 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A003718 A012947 A013066 this_sequence A012995 A076744 A024257

Adjacent sequences: A013099 A013100 A013101 this_sequence A013103 A013104 A013105

KEYWORD

sign

AUTHOR

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

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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