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A027236 a(n) = Sum_{k=0..n} (k+1) * A026758(n, n-k). 0

%I #8 Oct 27 2019 11:34:22

%S 1,3,8,23,55,149,339,889,1966,5059,10985,27939,59898,151210,321155,

%T 806806,1701347,4260511,8933737,22325426,46600476,116300505,241846731,

%U 603086027,1250175771,3116094702,6442311137,16054097455,33114584924

%N a(n) = Sum_{k=0..n} (k+1) * A026758(n, n-k).

%K nonn

%O 0,2

%A _Clark Kimberling_

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)