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A234657 Number of (n+1) X (7+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings). 0
1434624, 2414992, 4196144, 8731840, 18735792, 46510768, 118121744, 335161744, 966751344, 3047922832, 9726377744, 33467842000, 116063388912 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Some solutions for n=1:

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

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

CROSSREFS

Column 7 of A234658.

Sequence in context: A345642 A346355 A339477 * A015361 A259306 A210629

Adjacent sequences: A234654 A234655 A234656 * A234658 A234659 A234660

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 29 2013

STATUS

approved

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Last modified February 1 07:16 EST 2023. Contains 359981 sequences. (Running on oeis4.)