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A026580 T(n,0) + T(n,1) + ... + T(n,n), T given by A026568. 0

%I

%S 1,2,5,12,30,75,189,478,1211,3076,7818,19901,50680,129179,329383,

%T 840336,2144540,5474889,13980493,35709394,91228015,233108456,

%U 595740568,1522725379,3892624055,9952119054,25446913766,65072487645

%N T(n,0) + T(n,1) + ... + T(n,n), T given by A026568.

%F Conjecture: n*a(n) +(n-2)*a(n-1) +(-17*n+28)*a(n-2) +5*(-n+4)*a(n-3) +2*(34*n-107)*a(n-4) +16*(n-5)*a(n-5) +32*(-2*n+9)*a(n-6)=0. - _R. J. Mathar_, Jun 23 2013

%K nonn

%O 0,2

%A _Clark Kimberling_

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Last modified September 28 00:46 EDT 2021. Contains 347698 sequences. (Running on oeis4.)