A178293 - OEIS

A178293

Number of collinear point 4-tuples in an n X n .. X n 9-dimensional cubical grid

0, 0, 0, 4907776, 250334405, 4432154880, 83634563315, 797134274560, 5623659900846, 41662871239680, 222405745759290, 917018531400960, 4294168964874715, 16067910057871616, 50983015079601525

(list; graph; refs; listen; history; text; internal format)

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: A147580 A043662 A125834 * A218108 A089234 A178136

Adjacent sequences: A178290 A178291 A178292 * A178294 A178295 A178296

KEYWORD

nonn

AUTHOR

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

STATUS

approved