A364634 a(n) = n * LegendreP(n, 3).

0, 3, 26, 189, 1284, 8415, 53934, 340473, 2125832, 13163067, 80974530, 495513909, 3019151628, 18329137047, 110933875542, 669635727345, 4032883785744, 24239190315123, 145427707041642, 871139168383917, 5210876275948820, 31129900498786383, 185755111545655806

Offset: 0

Author

Peter Luschny, Jul 30 2023

Keywords

• nonn

Crossrefs

Cf. A364361.

Programs

Maple

A364634 := n -> n*LegendreP(n, 3):
seq(A364634(n), n = 0..22);

Formula

a(n) = A364361(2*n, n).