A178268 Number of collinear point triples in an n X n .. X n 4-dimensional cubical grid

0, 0, 272, 2960, 21680, 85584, 330032, 916832, 2402544, 5543936, 12188000, 23612496, 46235520, 82329552, 142808864, 239006304, 393144576, 612427040, 953341296, 1420731120, 2107948720, 3060955376, 4384446800, 6098267968

Offset

1,3

Links

R. H. Hardin, Table of n, a(n) for n=1..38

Crossrefs

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

Sequence in context: A230908 A305952 A317213 * A205345 A302899 A266106

Adjacent sequences: A178265 A178266 A178267 * A178269 A178270 A178271

Keyword

nonn

Author

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

Status

approved