login
A234478
Number of (n+1) X (3+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
95872, 2765648, 87871120, 2941603932, 101383587816, 3555453917560, 125966139330824, 4492285883423076, 160824570377394016, 5773259968701864120, 207553467686691838528, 7471009938914959605184, 269067241891021791894672
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=1:
6 1 0 2 5 5 6 7 3 7 1 2 1 1 5 7 7 5 7 7
7 1 1 4 4 5 5 7 3 6 1 3 2 1 4 7 6 3 6 7
CROSSREFS
Column 3 of A234481.
Sequence in context: A235564 A175598 A078518 * A130001 A253747 A253754
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 26 2013
STATUS
approved