A178269 Number of collinear point 4-tuples in an n X n .. X n 4-dimensional cubical grid

0, 0, 0, 520, 5632, 31176, 135240, 429360, 1211208, 3028224, 6888216, 13961448, 28262776, 52206088, 91745904, 157574640, 263360352, 418048464, 657072528, 991543416, 1487807520, 2194825240, 3156000184, 4416200736, 6212710248

Offset

1,4

Links

R. H. Hardin, Table of n, a(n) for n=1..33

Crossrefs

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

Sequence in context: A250693 A200427 A250678 * A351324 A183588 A168220

Adjacent sequences: A178266 A178267 A178268 * A178270 A178271 A178272

Keyword

nonn

Author

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

Status

approved