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Search: id:A012050
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A012050 sech(sin(tanh(x)))=1-1/2!*x^2+17/4!*x^4-673/6!*x^6+48481/8!*x^8... +0
1
1, -1, 17, -673, 48481, -5556929, 930399601, -214412110305, 65104843008449, -25194079035190657, 12104203127776694225, -7069126951831617433377, 4932323527151866597114145, -4052159085639349626953573441 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A089018 A118769 A009158 this_sequence A012157 A012137 A012182

Adjacent sequences: A012047 A012048 A012049 this_sequence A012051 A012052 A012053

KEYWORD

sign

AUTHOR

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

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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