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A012854 Numerators of coefficients in Taylor series expansion of log(cosec(x)*log(x+1)). 1

%I #11 May 01 2013 21:16:00

%S 0,-1,3,-1,89,-19,61,-751,214157,-2857,2440391,-434293,4786462007,

%T -8181904909,1166310802697,-5044289,1618597982932877,-5026792806787,

%U 3508902074919929,-69028763155644023,739712409650680415009,-1022779523247467,133929790442712217763,-750218743980105669781,129849827600028451700919961

%N Numerators of coefficients in Taylor series expansion of log(cosec(x)*log(x+1)).

%e -1/2*x+3/8*x^2-1/8*x^3+89/960*x^4-19/288*x^5+61/1152*x^6-751/17280*x^7+214157/5806080*x^8-

%e 2857/89600*x^9+2440391/87091200*x^10 +...

%p t1:=log(csc(x)*log(x+1));

%p t2:=series(t1,x,30);

%p t3:=seriestolist(t2);

%p t4:=map(numer,t3); t5:=map(denom,t3); lprint(t2);

%Y Cf. A202379.

%K sign,frac

%O 0,3

%A Patrick Demichel (patrick.demichel(AT)hp.com)

%E Corrected by _N. J. A. Sloane_, Dec 18 2011, based on discussions on the Sequence Fans Mailing List, Dec 13-17 2011.

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Last modified April 19 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)