A178290 Number of collinear point 4-tuples in an n X n .. X n 8-dimensional cubical grid

0, 0, 0, 807040, 29389312, 406924416, 5493496080, 40707459840, 237337333008, 1379876481024, 6125076674736, 21640203681408, 84999017731696, 274088863846528, 766309629591264

Offset

1,4

Links

Table of n, a(n) for n=1..15.

Crossrefs

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

Sequence in context: A272692 A186585 A270117 * A083617 A343082 A344239

Adjacent sequences: A178287 A178288 A178289 * A178291 A178292 A178293

Keyword

nonn

Author

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

Status

approved