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A234918 Number of (n+1) X (5+1) 0..4 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
3848, 13368, 49056, 221272, 991144, 4834440, 22970144, 115287720, 562322520, 2874164624, 14288844920, 74156061840, 375019322800, 1972786791616, 10136809663120, 53964866220544, 281379640263800, 1513505664100088 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=3:
0 1 4 1 0 1 1 4 3 4 3 0 4 1 0 3 4 3 4 3 0 1 2 3
3 2 3 2 3 2 2 3 0 3 4 3 1 0 1 2 1 2 3 4 3 2 1 4
0 1 0 1 0 1 1 4 3 4 3 4 4 1 4 3 4 3 2 1 2 3 0 1
1 4 1 0 1 4 2 3 0 3 0 3 1 0 1 2 1 2 3 0 3 2 1 0
CROSSREFS
Column 5 of A234921.
Sequence in context: A031560 A180505 A252878 * A015069 A015070 A031629
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 01 2014
STATUS
approved

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Last modified April 16 01:01 EDT 2024. Contains 371696 sequences. (Running on oeis4.)