544464

Appears in sequences

• Number of collinear point-triples in an n X n grid.at n=28A000938
• The Wiener index of the cyclic phenylene with n hexagons (n>=3).at n=35A224456
• G.f. A(x) satisfies: A( 2*x - A(x) - x^2 ) = 2*x - A(x).at n=7A292810