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A234187
Number of (n+1) X (3+1) 0..6 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
33720, 549448, 9120608, 153306026, 2571461348, 43400523142, 730012705548, 12351551016378, 208225886140004, 3531762344820950, 59673341526538620, 1014709076188331830, 17184235472239702180, 292979555763785920878
OFFSET
1,1
COMMENTS
Column 3 of A234190.
LINKS
EXAMPLE
Some solutions for n=1:
2 2 4 1 0 1 0 3 6 6 3 6 4 3 6 5 0 5 2 2
6 4 4 3 1 4 5 6 0 2 1 6 5 2 3 0 2 5 4 2
CROSSREFS
Sequence in context: A235504 A355142 A297127 * A209827 A235735 A235516
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 20 2013
STATUS
approved