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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

R. H. Hardin, Table of n, a(n) for n = 1..210

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

Adjacent sequences: A234915 A234916 A234917 * A234919 A234920 A234921

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 01 2014

STATUS

approved

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Last modified February 8 06:05 EST 2023. Contains 360134 sequences. (Running on oeis4.)