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A144271 Row sums of triangle A144270 (called S2hat(-1)). 2

%I #6 Jul 01 2023 12:11:18

%S 1,2,5,21,129,1099,11647,148292,2190302,36842892,694276152,

%T 14488348603,331537914373,8254117606799,222087256536602,

%U 6421589319659283,198565371839434761,6538245667687424041,228396692050813678534,8436237099236470594589

%N Row sums of triangle A144270 (called S2hat(-1)).

%F a(n) = Sum_{m=1..n} A144270(n,m), n>=1.

%Y Cf. A144270.

%K nonn,easy

%O 1,2

%A _Wolfdieter Lang_, Oct 09 2008

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Last modified March 28 10:31 EDT 2024. Contains 371240 sequences. (Running on oeis4.)