# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a009677 Showing 1-1 of 1 %I A009677 #22 Feb 09 2014 12:53:32 %S A009677 1,2,8,-8,-4096,-184064,-6462336,141778176,56652931072,7990288265216, %T A009677 604515399630848,-52091469346013184,-36361552578811101184, %U A009677 -9602033551463759937536,-1234912222481784889933824 %N A009677 Expansion of e.g.f. tan(sinh(sin(x))), odd powers only. %H A009677 Vincenzo Librandi, Table of n, a(n) for n = 0..100 %t A009677 With[{nn=30},Take[CoefficientList[Series[Tan[Sinh[Sin[x]]],{x,0,nn}],x] Range[0,nn-1]!,{2,-1,2}]] (* _Harvey P. Dale_, Aug 06 2013 *) %K A009677 sign %O A009677 0,2 %A A009677 _R. H. Hardin_ %E A009677 Extended with signs by _Olivier GĂ©rard_, Mar 15 1997 %E A009677 Previous Mathematica program replaced by _Harvey P. Dale_, Aug 06 2013 %E A009677 Clarified definition, _Joerg Arndt_, Feb 09 2014 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE