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Row sums of triangle A134146 and partition array A134145 (M3(3)/M3).
3

%I #7 Sep 25 2024 14:57:56

%S 1,4,19,133,1123,12085,151765,2236876,37373866,702393424,14611910794,

%T 333811635793,8298224157103,223061783080075,6444694333816630,

%U 199168434836797921,6555131451981351961,228906927287899911709

%N Row sums of triangle A134146 and partition array A134145 (M3(3)/M3).

%F a(n) = Sum_{m=1..n} A134146(n,m), n>=1.

%F a(n) = Sum_{k=1..p(n)} A134145(n,k), with p(n) = A000041(n) (number of partitions of n).

%Y Cf. A000041, A134148 (alternating row sums of triangle A134146).

%K nonn,easy

%O 1,2

%A _Wolfdieter Lang_, Nov 13 2007