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Search: id:A013320
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A013320 sec(exp(x)-cos(x))=1+1/2!*x^2+6/3!*x^3+21/4!*x^4+120/5!*x^5... +0
1
1, 0, 1, 6, 21, 120, 1077, 8918, 83097, 952560, 11790649, 156839430, 2318954253, 37207496040, 637980683277, 11745733936022, 231142374081009, 4825295491430880, 106636356923768497, 2489165244414184326 (list; graph; listen)
OFFSET

0,4
CROSSREFS

Adjacent sequences: A013317 A013318 A013319 this_sequence A013321 A013322 A013323

Sequence in context: A026650 A009253 A012840 this_sequence A056308 A081077 A093775

KEYWORD

nonn

AUTHOR

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

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Last modified May 13 01:46 EDT 2008. Contains 139661 sequences.

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