A234663 - OEIS

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A234663

Number of (n+1) X (5+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).

417050, 1566596, 5969944, 23814574, 96408730, 406314140, 1736939430, 7695605586, 34563948112, 160286890226, 753070652682, 3641338746212, 17827388594990, 89569410664562, 455342474969544, 2369222376651354

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OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..22

EXAMPLE

Some solutions for n=1:

0 1 6 1 4 4 3 6 4 6 4 0 0 4 5 5 6 1 3 2 5 5 5 4

0 5 6 5 4 0 4 3 5 3 5 5 5 5 2 6 3 2 0 3 2 6 2 5

CROSSREFS

Column 5 of A234665.

Sequence in context: A178203 A152869 A251960 * A183591 A184770 A236909

Adjacent sequences: A234660 A234661 A234662 * A234664 A234665 A234666

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 29 2013

STATUS

approved