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%I #8 Oct 27 2019 11:34:12
%S 1,3,8,22,53,138,317,803,1794,4478,9823,24321,52662,129815,278365,
%T 684689,1457113,3581074,7574863,18616678,39182980,96351078,201947877,
%U 497006898,1038017513,2557192089,5324505911,13131212951,27268815916
%N a(n) = Sum_{k=0..n} (k+1) * A026758(n, k).
%K nonn
%O 0,2
%A _Clark Kimberling_