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A234244
Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).
1
790718, 23428586, 725628904, 22918035530, 726655747532, 23141164047392, 736603691141316, 23507963375000526, 749462059155365450, 23951460063621821168, 764584860814829968090, 24467051427944239943588
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=1:
2 4 6 0 3 4 2 2 0 5 2 0 2 6 6 0 2 5 3 2
2 2 6 2 3 6 2 4 0 7 4 4 4 6 4 0 4 5 5 6
CROSSREFS
Column 4 of A234245.
Sequence in context: A104949 A237895 A187295 * A255762 A255755 A254844
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 21 2013
STATUS
approved