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A234737 Number of (n+1) X (7+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 8 (constant-stress 1 X 1 tilings). 0
426120, 760608, 1283880, 2723040, 5395128, 13083552, 29705640, 79520352, 200901240, 578901408, 1586287080, 4838786400, 14115215928 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=1:
2 6 1 7 0 5 3 5 0 5 1 5 2 7 0 5 6 1 7 1 7 0 6 3
6 2 5 3 4 1 7 1 4 1 5 1 6 3 4 1 2 5 3 5 3 4 2 7
CROSSREFS
Column 7 of A234738.
Sequence in context: A233499 A282337 A192228 * A206082 A209794 A234448
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 30 2013
STATUS
approved

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Last modified July 24 10:37 EDT 2024. Contains 374583 sequences. (Running on oeis4.)