A178259 - OEIS

%I #4 Mar 31 2012 12:35:44

%S 0,0,0,0,0,0,16,148,756,2820,8580,22572,53224,115036,231960,441032,

%T 799064,1387368,2324744,3771176,5952528,9159392,13791008,20340036,

%U 29476508,41992820,58953420,81591788,111535064,150611100,201257608

%N Number of collinear point 7-tuples in an n X n cubical grid

%H R. H. Hardin, <a href="/A178259/b178259.txt">Table of n, a(n) for n=1..36</a>

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

%K nonn

%O 1,7

%A _R. H. Hardin_, suggested by R. J. Mathar in the Sequence Fans Mailing List, May 24 2010