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A235066
Number of (n+1) X (3+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
1
4352, 22936, 126040, 727376, 4212792, 24652260, 144439680, 851021376, 5022415256, 29788907152, 177026662232, 1057318105828, 6328071686208, 38069139395704, 229503044264960, 1390863826264104, 8446497710589336
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=3:
4 0 4 0 4 5 4 5 2 3 5 3 2 1 2 3 5 3 4 5
6 5 6 5 2 0 2 0 6 4 3 4 4 6 4 2 3 4 2 0
1 3 1 3 0 1 0 1 5 0 2 0 3 2 3 4 5 3 4 5
5 4 5 4 2 0 2 0 3 1 6 1 2 4 2 6 3 4 2 0
CROSSREFS
Column 3 of A235071.
Sequence in context: A048900 A294985 A252302 * A170786 A223378 A239193
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 03 2014
STATUS
approved