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%I #9 Jun 13 2023 10:55:20
%S 0,0,0,0,0,0,0,1,1,2,2,3,4,4,5,6,7,8,9,10,11,13,14,15,17,18,20,21,23,
%T 25,27,29,31,33,35,37,39,41,43,46,48,51,53,56,59,61,64,67,70,73,76,79,
%U 82,86,89,92,96,99,103,106,110,114,118,122,126,130,134,138,142,146,150
%N [ n(n-1)/32 ].
%H <a href="/index/Rec#order_33">Index entries for linear recurrences with constant coefficients</a>, signature (3, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -4, 4, -3, 1)
%F G.f.: x^7(1+x^2-x^3+x^4+x^9+x^14+x^19-x^20+x^21+x^23)/((1-x)(1-x^3)(1-x^32));
%o (PARI) a(n)=if(n<0,0,(n^2-n)\32)
%K nonn
%O 0,10
%A _N. J. A. Sloane_.
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