%I #9 Oct 26 2019 16:17:03
%S 1,3,8,22,55,143,349,885,2138,5356,12890,32092,77178,191530,460934,
%T 1141888,2751551,6809421,16431189,40633227,98175341,242626935,
%U 586867463,1449457735,3509084995,8661201115,20982916461,51755457003
%N a(n) = Sum_{k=0..n} (k+1) * A026769(n, k).
%K nonn
%O 0,2
%A _Clark Kimberling_