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Search: id:A013133
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A013133 exp(tanh(x)+tan(x))=1+2*x+4/2!*x^2+8/3!*x^3+16/4!*x^4+64/5!*x^5... +0
1
1, 2, 4, 8, 16, 64, 448, 2816, 14592, 80896, 705536, 7278592, 65245184, 532070400, 5385535488, 71008190464, 910402060288, 10323887915008, 124371776831488, 1895043049717760, 30930578556583936 (list; graph; listen)
OFFSET

0,2

CROSSREFS

Sequence in context: A018754 A076086 A074700 this_sequence A012997 A013184 A066713

Adjacent sequences: A013130 A013131 A013132 this_sequence A013134 A013135 A013136

KEYWORD

nonn

AUTHOR

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

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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