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A234727 Number of (n+1) X (7+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7 (constant-stress 1 X 1 tilings). 0
1344640, 2531888, 4577624, 10632200, 23194936, 62379416, 157274648, 467509400, 1311421240, 4191830168, 12727101464 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=1:

0 6 3 6 0 3 2 6 4 4 7 4 5 0 5 1 4 4 6 3 5 4 6 2

4 3 7 3 4 0 6 3 0 7 3 7 1 3 1 4 0 7 2 6 1 7 2 5

CROSSREFS

Column 7 of A234728.

Sequence in context: A023047 A206254 A157854 * A184661 A187961 A120609

Adjacent sequences: A234724 A234725 A234726 * A234728 A234729 A234730

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 30 2013

STATUS

approved

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Last modified February 2 05:15 EST 2023. Contains 359997 sequences. (Running on oeis4.)