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Search: id:A012754
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A012754 exp(arctanh(x)*tanh(x))=1+2/2!*x^2+12/4!*x^4+280/6!*x^6+13328/8!*x^8... +0
1
1, 2, 12, 280, 13328, 1016608, 120249536, 19735743872, 4349101334784, 1233253332705792, 437938810884459520, 190333673674118699008, 99369086035110941036544, 61369835997419856216006656 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A098137 A014982 A012444 this_sequence A083568 A003121 A057170

Adjacent sequences: A012751 A012752 A012753 this_sequence A012755 A012756 A012757

KEYWORD

nonn

AUTHOR

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

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Last modified August 29 14:50 EDT 2008. Contains 143238 sequences.

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