A131725 - OEIS

%I #12 Jan 10 2021 02:18:54

%S 0,1,3,8,10,19,19,28,36,41,49,50,50,51,53,58,60,69,69,78,86,91,99,100,

%T 100,101,103,108,110,119,119,128,136,141,149,150,150,151,153,158,160,

%U 169,169,178,186,191,199,200

%N Partial sums of A131711.

%H <a href="/index/Rec#order_11">Index entries for linear recurrences with constant coefficients</a>, signature (1,1,-1,-1,1,1,-1,-1,1,1,-1).

%F O.g.f.: x*(x^8+8x^7+4x^6+5x^4+4x^2+2x+1)/((x-1)^2*(1+x)*(x^2+x+1)*(x^2-x+1)*(x^4-x^2+1)). - _R. J. Mathar_, Jul 04 2008

%F a(n) = a(n-1) + a(n-2) - a(n-3) - a(n-4) + a(n-5) + a(n-6) - a(n-7) - a(n-8) + a(n-9) + a(n-10) - a(n-11) for n > 10. - _Chai Wah Wu_, Jan 09 2021

%Y Cf. A131711.

%K nonn,easy

%O 0,3

%A _Paul Curtz_, Sep 16 2007

%E Edited by _R. J. Mathar_, Jul 04 2008