%I #8 Aug 09 2015 12:33:18

%S 5,11,20,33,52,78,111,152,203,265,338,423,522,636,765,910,1073,1255,

%T 1456,1677,1920,2186,2475,2788,3127,3493,3886,4307,4758,5240,5753,

%U 6298,6877,7491,8140,8825,9548,10310,11111,11952,12835,13761,14730,15743,16802,17908,19061,20262,21513,22815,24168

%N a(n) = (d(n)-r(n))/2, where d = A026037 and r is the periodic sequence with fundamental period (1,0,0,1).

%H <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (4,-7,8,-7,4,-1).

%F G.f. x^3*( 5-9*x+11*x^2-10*x^3+7*x^4-2*x^5 ) / ( (x^2+1)*(x-1)^4 ). - _R. J. Mathar_, Jun 22 2013

%K nonn

%O 3,1

%A _Clark Kimberling_