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Search: id:A012741
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A012741 tan(arctanh(x)*cos(x))=x+1/3!*x^3+5/5!*x^5+509/7!*x^7+44393/9!*x^9... +0
1
1, 1, 5, 509, 44393, 4436441, 630529965, 126873147413, 33552906028625, 11170776120292657, 4582643056340650197, 2275243986686803354029, 1344475182597566546716345, 932197702028175163027746313 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Adjacent sequences: A012738 A012739 A012740 this_sequence A012742 A012743 A012744

Sequence in context: A083151 A128682 A068234 this_sequence A003394 A110721 A067446

KEYWORD

nonn

AUTHOR

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

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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