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A234449 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 1 (constant-stress 1 X 1 tilings). 1
3137920, 170001402, 10079824144, 627437990794, 39720806964788, 2548197407150290, 163772796220260584, 10589006000192373618, 683462930964952700304, 44310666343515542796718, 2864896872318574609384464 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..20

EXAMPLE

Some solutions for n=1:

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

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

CROSSREFS

Column 6 of A234450.

Sequence in context: A172606 A234151 A067899 * A204629 A235070 A203877

Adjacent sequences: A234446 A234447 A234448 * A234450 A234451 A234452

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 26 2013

STATUS

approved

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Last modified February 1 19:27 EST 2023. Contains 359995 sequences. (Running on oeis4.)