A354491 Diagonal of the triangle A354490.

0, 0, 0, 0, 4, 0, 6, 8, 18, 0, 62, 0, 48, 88, 77, 0, 203, 0, 265, 209, 140, 0, 628, 118, 199, 301, 614, 0, 1285, 0, 639, 583, 364, 733, 2051, 0, 467, 836, 2275, 0, 2923, 0, 1720, 2597, 704, 0, 4558, 599, 2427, 1491, 2454, 0, 4449, 2021, 5008, 1895, 1146, 0, 11618

Offset: 2

Author

Hugo Pfoertner, May 30 2022

Keywords

• nonn

Comments

Apparently, a(n) = 0 for prime n.

Crossrefs

See A353532 and A354490 for more information.

Cf. A353447.

Formula

a(n) = A354490(n, n).