%I #5 Mar 31 2012 12:36:34
%S 2,76,3904,344044,40065880,6046334324,1099981072751,231069206905205,
%T 53332894057280732,13062771135606107106,3312119561085281340968,
%U 856694689962959996618514,224079649012945587508397744
%N Number of nX4 0..7 arrays with values 0..7 introduced in row major order and each element equal to at least one horizontal or vertical neighbor
%C Column 4 of A198661
%H R. H. Hardin, <a href="/A198658/b198658.txt">Table of n, a(n) for n = 1..17</a>
%e Some solutions with all values 0 to 7 for n=4
%e ..0..0..1..1....0..0..1..1....0..1..2..2....0..1..2..3....0..1..1..2
%e ..2..2..3..4....2..2..3..4....0..1..3..3....0..1..2..3....0..3..3..2
%e ..5..6..3..4....5..5..3..4....4..5..5..6....4..5..6..6....4..5..5..6
%e ..5..6..7..7....6..6..7..7....4..7..7..6....4..5..7..7....4..7..7..6
%K nonn
%O 1,1
%A _R. H. Hardin_ Oct 28 2011
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