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A234988 Number of (n+1) X (5+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings). 1
35072, 189200, 1303920, 12242044, 128653892, 1507413164, 18608169852, 241470307440, 3223991647750, 44160189525640, 614262146735550, 8656420502385760, 122980147463555208, 1758712132194011052 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=2:
1 2 1 4 1 2 0 1 4 5 1 4 0 4 0 1 0 5 2 5 0 1 0 5
0 3 0 1 0 3 1 0 1 4 2 3 1 3 1 0 1 4 3 4 1 4 1 4
4 5 4 3 4 5 4 1 4 5 1 0 0 4 0 1 4 5 2 1 0 1 0 1
CROSSREFS
Column 5 of A234991.
Sequence in context: A031835 A250525 A251063 * A075831 A213805 A204491
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 02 2014
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)