A178259 Number of collinear point 7-tuples in an n X n cubical grid.

0, 0, 0, 0, 0, 0, 16, 148, 756, 2820, 8580, 22572, 53224, 115036, 231960, 441032, 799064, 1387368, 2324744, 3771176, 5952528, 9159392, 13791008, 20340036, 29476508, 41992820, 58953420, 81591788, 111535064, 150611100, 201257608

Offset: 1

Author

R. H. Hardin, suggested by R. J. Mathar in the Sequence Fans Mailing List, May 24 2010

Keywords

• nonn

Links

• R. H. Hardin, Table of n, a(n) for n=1..36

Crossrefs

Three collinear points in an n X n grid A000938 ; n X n X n grid A157882