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A009335
Expansion of log(1+sin(x))/cos(x).
0
0, 1, -1, 4, -8, 40, -121, 768, -3128, 24320, -124921, 1152512, -7158128, 76477440, -557749921, 6773211136, -56767019408, 772218880000, -7316056402321, 110191426928640, -1164842760597368, 19241219430809600
OFFSET
0,4
MATHEMATICA
Log[ 1+Sin[ x ] ]/Cos[ x ]
CoefficientList[Series[Log[1 + Sin[x]]*Sec[x], {x, 0, 20}], x] * Range[0, 20]! (* Vaclav Kotesovec, Jan 23 2015 *)
CROSSREFS
Sequence in context: A062898 A343810 A165458 * A303566 A165622 A162076
KEYWORD
sign,easy
AUTHOR
EXTENSIONS
Extended with signs by Olivier Gérard, Mar 15 1997
STATUS
approved