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 A009419 Expansion of log(1+x)*exp(tan(x)). 0
 0, 1, 1, 2, 8, 29, 141, 846, 4472, 39969, 218881, 2810290, 14610320, 280561709, 1153474973, 38655408078, 73062816912, 7216310776161, -11521981477983, 1796944146688834, -11006978325918280, 585629030872958429 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS FORMULA a(n) ~ (n-1)! * (-1)^(n+1) * exp(-tan(1)). - Vaclav Kotesovec, Jan 23 2015 MATHEMATICA Log[ 1+x ]*Exp[ Tan[ x ] ] CoefficientList[Series[E^Tan[x]*Log[1 + x], {x, 0, 20}], x] * Range[0, 20]! (* Vaclav Kotesovec, Jan 23 2015 *) CROSSREFS Sequence in context: A150758 A185033 A287045 * A000162 A052437 A131318 Adjacent sequences:  A009416 A009417 A009418 * A009420 A009421 A009422 KEYWORD sign,easy AUTHOR EXTENSIONS Extended with signs by Olivier Gérard, Mar 15 1997 STATUS approved

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Last modified August 4 16:59 EDT 2021. Contains 346454 sequences. (Running on oeis4.)