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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
OFFSET
1,1
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
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 29 2013
STATUS
approved