A178288 Number of collinear point 5-tuples in an n X n .. X n 7-dimensional cubical grid

0, 0, 0, 0, 372709, 8494464, 88086873, 587503616, 3369273138, 14491680000, 56179823994, 180939738624, 578688040839, 1597214147200, 4080840158787

Offset

1,5

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: A017537 A234792 A234382 * A250456 A043661 A206666

Adjacent sequences: A178285 A178286 A178287 * A178289 A178290 A178291

Keyword

nonn

Author

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

Status

approved