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A178287
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Number of collinear point 4-tuples in an n X n .. X n 7-dimensional cubical grid
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1
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0, 0, 0, 131776, 3470549, 37807680, 371453327, 2166664192, 10453333842, 47955097344, 177644368014, 539461479744, 1776632877223, 4936852235840, 12181833395949, 30549903200768, 72297760469620, 155915494771968
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OFFSET
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1,4
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LINKS
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CROSSREFS
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Three collinear points in an n X n grid A000938 ; n X n X n grid A157882
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KEYWORD
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nonn
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AUTHOR
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R. H. Hardin, suggested by R. J. Mathar in the Sequence Fans Mailing List, May 24 2010
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STATUS
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approved
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