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A178259
Number of collinear point 7-tuples in an n X n cubical grid
1
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
1,7
LINKS
CROSSREFS
Three collinear points in an n X n grid A000938 ; n X n X n grid A157882
Sequence in context: A232957 A214513 A254952 * A269137 A155657 A135458
KEYWORD
nonn
AUTHOR
R. H. Hardin, suggested by R. J. Mathar in the Sequence Fans Mailing List, May 24 2010
STATUS
approved