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A233112 Number of nX7 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order 1

%I #4 Dec 04 2013 07:14:51

%S 2136,53692063,1471365099497,40385221182281560,1108502928092713640626,

%T 30426461543542804692390703,835153023014356911992288011287,

%U 22923486223269810222694953768125080

%N Number of nX7 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order

%C Column 7 of A233113

%H R. H. Hardin, <a href="/A233112/b233112.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..0..0..0..1..0..1..5....0..0..0..1..2..4..0....0..0..0..1..2..5..3

%e ..0..0..0..0..2..5..3....1..0..0..0..0..4..4....4..0..0..2..5..5..4

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 04 2013

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Last modified August 27 17:17 EDT 2024. Contains 375471 sequences. (Running on oeis4.)