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A229317 Number of nX4 0..3 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X5 0..3 array without adjacent equal elements in the latter.

%I A229317 #6 Jul 23 2025 05:40:19
%S A229317 176,13968,717882,33330044,1520769276,69027667944,3129534386120,
%T A229317 141829123448362,6426529323002908,291187328893574164,
%U A229317 13193327853132680288,597771666844708003058,27084059447325490757312
%N A229317 Number of nX4 0..3 arrays of the median of the corresponding element, the element to the east and the element to the south in a larger (n+1)X5 0..3 array without adjacent equal elements in the latter.
%C A229317 Column 4 of A229320
%H A229317 R. H. Hardin, <a href="/A229317/b229317.txt">Table of n, a(n) for n = 1..36</a>
%e A229317 Some solutions for n=2
%e A229317 ..1..1..2..3....2..1..0..1....3..2..3..0....2..2..1..1....3..1..1..3
%e A229317 ..2..2..2..0....2..1..3..1....2..3..1..2....3..1..2..3....0..2..2..0
%K A229317 nonn
%O A229317 1,1
%A A229317 _R. H. Hardin_ Sep 19 2013