%I #5 Mar 31 2012 12:35:55
%S 4,35,1986,52827,885690,10540371,104446714,938543435,7996169226,
%T 66170227587,538977760842,4352945018619,34996920361210,
%U 280699272183347,2248598404709850,18001206351037995,144060870372238122
%N Number of arrangements of n+2 numbers in 0..7 with each number being the sum mod 8 of two others
%C Column 7 of A183884
%H R. H. Hardin, <a href="/A183882/b183882.txt">Table of n, a(n) for n = 1..65</a>
%e Some solutions for n=2
%e ..6....6....2....2....0....2....6....4....4....4....6....4....6....6....4....2
%e ..6....2....6....6....4....4....6....4....0....2....4....0....2....2....6....6
%e ..4....2....4....6....0....6....2....0....4....2....2....4....6....4....6....2
%e ..2....4....2....4....4....2....4....0....0....6....6....4....4....2....2....4
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 07 2011