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A178272 Number of collinear point 7-tuples in an n X n .. X n 4-dimensional cubical grid 0
0, 0, 0, 0, 0, 0, 2080, 26032, 172872, 813072, 3044712, 9667152, 27131344, 68725744, 160984560, 351148064, 725480624, 1421692128 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,7

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: A270537 A076581 A183675 * A194605 A233104 A071235

Adjacent sequences:  A178269 A178270 A178271 * A178273 A178274 A178275

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified July 22 03:22 EDT 2017. Contains 289648 sequences.