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A091040 Row sums of triangle A091039 (scaled second columns of (k,k)-Stirling2 arrays). 1

%I

%S 1,4,16,98,1252,39056,3235216,746947664,504955938112,1063702416056576,

%T 7035749505695570176,160587398553186610959104,

%U 12278492143557175831484111872,3469220019297527430713345352498176

%N Row sums of triangle A091039 (scaled second columns of (k,k)-Stirling2 arrays).

%F a(n)=sum(A091039(n, k), k=1..n), n>=1.

%K nonn,easy

%O 1,2

%A _Wolfdieter Lang_, Jan 23 2004

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Last modified June 25 18:38 EDT 2022. Contains 354851 sequences. (Running on oeis4.)