A341417 Row sums of triangle A339885.

1, 2, 2, 3, 2, 3, 1, 2, 0, 2, 0, 4, 2, 7, 5, 10, 6, 11, 5, 10, 3, 10, 3, 13, 6, 19, 11, 25, 14, 29, 14, 30, 12, 31, 12, 36, 16, 45, 23, 56, 30, 65, 33, 71, 34, 76, 35, 84, 40, 97, 48, 113, 58, 129, 66, 144, 71, 157, 76, 172, 83, 192

Offset: 1

Author

Wolfdieter Lang, Feb 15 2021

Keywords

• nonn
• easy

Crossrefs

Cf. A001318, A057077, A339885.

Formula

a(n) = Sum_{m=1..n} A339885(n, m), for n >= 1.

G.f.: -1 + 1/Product_{j>=1} (1 - (A057077(j-1)*x)^(A001318(j))).