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%I #4 Dec 26 2014 12:56:38
%S 2638,1866,3119,5860,11904,24232,51292,106308,220782,459446,975228,
%T 2051948,4296456,8990830,18974386,40168988,84355336,176912878,
%U 372064076,789230276,1658790278,3487370854,7319531044,15513370438,32648371576
%N Number of (n+2)X(4+2) 0..3 arrays with every consecutive three elements in every row, column, diagonal and antidiagonal having exactly two distinct values, and new values 0 upwards introduced in row major order
%C Column 4 of A253044
%H R. H. Hardin, <a href="/A253040/b253040.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A253040/a253040.txt">Empirical recurrence of order 82</a>
%F Empirical recurrence of order 82 (see link above)
%e Some solutions for n=4
%e ..0..1..1..2..2..0....0..0..1..1..2..1....0..1..1..2..2..0....0..1..0..0..2..0
%e ..0..2..2..1..1..0....2..1..2..1..1..3....1..1..0..0..2..0....0..0..1..1..2..2
%e ..1..1..2..1..2..1....2..1..1..2..2..3....0..2..0..0..1..1....1..0..1..0..0..2
%e ..1..1..0..0..1..1....1..2..1..2..1..2....0..2..2..1..1..0....1..2..2..0..0..1
%e ..2..0..2..0..2..2....1..1..3..3..2..2....2..0..2..0..0..1....2..2..1..2..1..1
%e ..2..0..0..1..1..2....2..2..3..3..1..1....2..2..1..1..0..0....1..1..2..2..0..0
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 26 2014
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