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A234167 Number of (n+1) X (6+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings). 1
764190, 8846884, 99877680, 1183467658, 13865878254, 171702282736, 2098023535022, 27538386579098, 353610525268640, 4972980047971518, 67334078721083922, 1018157155350964072, 14484963145641873482 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..23

EXAMPLE

Some solutions for n=1:

  1 4 2 3 3 1 4      0 2 3 2 3 4 4      0 3 2 1 0 4 1

  0 1 1 4 2 2 3      0 4 3 0 3 2 4      1 2 3 4 1 3 2

CROSSREFS

Column 6 of A234169.

Sequence in context: A043673 A233415 A122468 * A237573 A232123 A232421

Adjacent sequences:  A234164 A234165 A234166 * A234168 A234169 A234170

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 20 2013

STATUS

approved

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Last modified August 8 17:48 EDT 2022. Contains 356016 sequences. (Running on oeis4.)