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A233145 Number of nX6 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order.

%I A233145 #6 Jul 23 2025 07:55:06
%S A233145 452,1158334,3556749764,10976545771938,33888199682535539,
%T A233145 104628720219120084935,323040050513644831673711,
%U A233145 997383803217605432845939113,3079415768120334362937355766441
%N A233145 Number of nX6 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order.
%C A233145 Column 6 of A233147
%H A233145 R. H. Hardin, <a href="/A233145/b233145.txt">Table of n, a(n) for n = 1..210</a>
%e A233145 Some solutions for n=2
%e A233145 ..0..0..1..2..1..1....0..0..1..2..4..5....0..0..0..1..0..0....0..0..1..1..1..2
%e A233145 ..1..0..0..2..5..3....1..1..0..2..4..3....2..1..1..0..3..4....2..1..0..2..0..0
%K A233145 nonn
%O A233145 1,1
%A A233145 _R. H. Hardin_, Dec 04 2013