|
%I
%S 1,3,10,25,66,154,360,810,1810,3982,8700,18850,40614,87030,185680,
%T 394570,835578,1763998,3713700,7798770,16340302,34166086,71303160,
%U 148548250,308980386,641728494,1330992460,2757055810,5704253430
%N a(n) = Sum_{k=0..n} (k+1) * A026626(n,k).
%F Empirical g.f.: (3*x^7-2*x^6-5*x^5+3*x^4-x^3-x+1) / ((x-1)^2*(x+1)^2*(2*x-1)^2). - _Colin Barker_, Apr 26 2015
%K nonn
%O 0,2
%A _Clark Kimberling_
|
