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A026050 a(n) = (d(n)-r(n))/2, where d = A026049 and r is the periodic sequence with fundamental period (1,0,0,1). 0

%I

%S 59,78,102,132,170,217,273,339,417,508,612,730,864,1015,1183,1369,

%T 1575,1802,2050,2320,2614,2933,3277,3647,4045,4472,4928,5414,5932,

%U 6483,7067,7685,8339,9030,9758,10524,11330,12177,13065,13995,14969,15988,17052,18162,19320,20527,21783,23089

%N a(n) = (d(n)-r(n))/2, where d = A026049 and r is the periodic sequence with fundamental period (1,0,0,1).

%F Conjecture: G.f. x^7*( 59-158*x+203*x^2-202*x^3+145*x^4-45*x^5 ) / ( (x^2+1)*(x-1)^4 ). - _R. J. Mathar_, Jun 22 2013

%K nonn

%O 7,1

%A _Clark Kimberling_

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Last modified March 28 15:02 EDT 2020. Contains 333089 sequences. (Running on oeis4.)