A373030 - OEIS

%I #8 May 20 2024 08:56:55

%S 1,1,2,4,5,7,11,14,17,24,30,37,48,58,71,92,108,129,160,188,225,273,

%T 319,377,449,524,612,721,836,969,1134,1305,1503,1742,1996,2291,2637,

%U 3008,3435,3929,4469,5076,5778,6541,7401,8393,9466,10676,12049,13550,15235,17128

%N Expansion of 1 + Sum_{i>=1} Sum_{j>=1} x^(i*j) * Product_{k=1..i*j-1} (1+x^k).

%F G.f.: 1 + Sum_{k>=1} A000005(k) * x^k * Product_{j=1..k-1} (1+x^j).

%Y Row sums of A373029.

%Y Cf. A000005, A000009, A323433.

%K nonn

%O 0,3

%A _Seiichi Manyama_, May 20 2024