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Search: id:A013055
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A013055 sech(sinh(x)+tan(x))=1-4/2!*x^2+56/4!*x^4-1798/6!*x^6+107880/8!*x^8... +0
1
1, -4, 56, -1798, 107880, -10378106, 1464480244, -284901103638, 73088762562608, -23906588709686578, 9710588243080306892, -4795485037260052060974, 2829543191798552453252232 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A009563 A111849 A009159 this_sequence A012983 A012959 A013113

Adjacent sequences: A013052 A013053 A013054 this_sequence A013056 A013057 A013058

KEYWORD

sign

AUTHOR

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

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.

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