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%I #5 Mar 31 2012 12:35:55
%S 16,492,57614,1172880,13388190,122033732,1030189438,8431580544,
%T 68127437030,547474985956,4389023189750,35147929076368,
%U 281325633652942,2251182017398052,18011828552749070,144104466144893120
%N Number of arrangements of n+3 numbers in 0..7 with each number being the sum mod 8 of three others
%C Column 7 of A183892
%H R. H. Hardin, <a href="/A183890/b183890.txt">Table of n, a(n) for n = 1..30</a>
%e Some solutions for n=2
%e ..7....6....7....1....6....4....4....0....6....2....6....6....3....2....5....6
%e ..5....2....7....1....4....4....6....6....2....2....2....2....7....2....1....4
%e ..3....6....5....1....2....0....2....4....6....0....0....4....3....6....3....0
%e ..3....0....7....3....2....6....2....2....6....0....6....2....5....2....5....2
%e ..7....4....3....5....0....6....0....6....2....4....4....0....7....6....1....2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 07 2011
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