A363366 Antidiagonal sums of A363365.

1, 4, 13, 43, 152, 575, 2314, 9870, 44535, 212242, 1066327, 5635369, 31254046, 181478525, 1100796500, 6960517564, 45791562573, 312867812160, 2216414659873, 16255306015303, 123249020783620, 964832925700315, 7788943826367902, 64770559745065226, 554239921143411715

Offset: 1

Author

Stefano Spezia, May 29 2023

Keywords

• nonn

Crossrefs

Cf. A363365.

Programs

Mathematica

A363365[n_,k_]:=((k-1)*(k+1)^(n+1)+k*n-k^2+1)/k^2; Table[Sum[A363365[n-k+1,k],{k,n}],{n,27}]