A163983 Antidiagonal sums of A163280.

1, 6, 18, 41, 77, 133, 210, 310, 445, 602, 810, 1049, 1347, 1693, 2068, 2545, 3028, 3613, 4256, 4987, 5817, 6711, 7640, 8783, 9962, 11157, 12454, 13992, 15615, 17310, 19194, 21113, 23108, 25325, 27852, 30412, 33158, 36019, 38920, 41877, 45230, 48686, 52528, 56593, 60399, 64406

Offset: 1

Author

Omar E. Pol, Aug 08 2009

Keywords

• nonn

Crossrefs

Cf. A163280, A161344, A164000.

Programs

PARI

lista(nn) = my(v = apply(f, [1..nn^2]), cols = vector(nn, i, select(x->(x==i), v, 1))); vector(nn, i, sum(j=1, i, cols[j][i-j+1])); \\ Michel Marcus, Jan 23 2023

Extensions

More terms from Michel Marcus, Jan 23 2023

Definition corrected by Omar E. Pol, Jan 24 2023