A178271 Number of collinear point 6-tuples in an n X n .. X n 4-dimensional cubical grid

0, 0, 0, 0, 0, 1400, 16520, 103040, 455040, 1602000, 4840032, 12815552, 31069112, 68954312, 144449440, 284461680, 537258960, 966579120

Offset

1,6

Links

Table of n, a(n) for n=1..18.

Crossrefs

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

Sequence in context: A336738 A271549 A203918 * A271579 A271712 A352239

Adjacent sequences: A178268 A178269 A178270 * A178272 A178273 A178274

Keyword

nonn

Author

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

Status

approved