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Search: id:A012143
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A012143 cosh(arcsin(arctanh(x)))=1+1/2!*x^2+13/4!*x^4+469/6!*x^6+33433/8!*x^8... +0
1
1, 1, 13, 469, 33433, 3984681, 718210725, 183013440765, 62801454477105, 27970921286867025, 15708198897246520125, 10866653910101298549285, 9083998201236955132833225, 9030162506735790711308044665 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A102075 A081862 A012073 this_sequence A055412 A116114 A095883

Adjacent sequences: A012140 A012141 A012142 this_sequence A012144 A012145 A012146

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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