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Search: id:A013242
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A013242 arctanh(log(x+1)-tan(x))=-1/2!*x^2-6/4!*x^4+8/5!*x^5-150/6!*x^6... +0
1
-1, 0, -6, 8, -150, 448, -7560, 38432, -650160, 4827328, -85887648, 855019904, -16230758544, 204362847232, -4163699379840, 63548399361536, -1392682970270592, 24960951809133568, -588583828329908480 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Sequence in context: A013239 A013235 A013236 this_sequence A002689 A000955 A027721

Adjacent sequences: A013239 A013240 A013241 this_sequence A013243 A013244 A013245

KEYWORD

sign

AUTHOR

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

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Last modified November 24 19:42 EST 2009. Contains 167435 sequences.

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