|
%I #16 Jun 13 2015 00:52:02
%S 1,0,6,-6,20,-36,50,-114,104,-264,190,-510,316,-876,490,-1386,720,
%T -2064,1014,-2934,1380,-4020,1826,-5346,2360,-6936,2990,-8814,3724,
%U -11004,4570,-13530,5536,-16416,6630,-19686,7860,-23364,9234,-27474,10760,-32040,12446,-37086,14300,-42636,16330
%N G.f.: (1+x^2)^2*(x^4-6*x^3+1)/(x^2-1)^4.
%C This sequence arose from an arithmetic error when computing A136264.
%H <a href="/index/Rec#order_08">Index entries for linear recurrences with constant coefficients</a>, signature (0,4,0,-6,0,4,0,-1).
%F a(n)= -n/12+3/4-n^3/6+3n^2/4+(-1)^n*(-3n^2/4+29n/12-3/4+n^3/3), n>0. [From _R. J. Mathar_, Mar 15 2009]
%K sign,easy
%O 0,3
%A _Roger L. Bagula_, Feb 28 2006
%E Edited by _N. J. A. Sloane_, Dec 21 2006 and Apr 19 2008
|
