login
A234479
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 1 (constant-stress 1 X 1 tilings).
1
1200640, 56172656, 2941603932, 163999261180, 9478559277180, 560119617963572, 33549726037031472, 2027462205875377860, 123190042750851103212, 7513795358540375982160, 459317893129790736307176
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=1:
0 6 6 5 5 4 2 5 3 7 0 2 5 3 1 0 0 0 2 3
0 7 6 4 3 2 1 3 0 3 2 5 7 6 3 0 1 2 3 3
CROSSREFS
Column 4 of A234481.
Sequence in context: A235247 A112129 A102336 * A251166 A274833 A206042
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 26 2013
STATUS
approved