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A234420 Number of (n+1)X(7+1) 0..7 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1 1
2094334, 609452862, 184360780592, 57473377454022, 18122285038689252, 5747445821273175392, 1828227876741151008626, 582516650060275178947138, 185790286741345464937151494, 59296242342650026057892424900 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A234421

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..84

EXAMPLE

Some solutions for n=1

..4..4..4..5..6..5..4..3....2..2..2..2..1..1..0..1....6..6..5..6..6..7..6..5

..4..5..4..5..5..5..4..4....2..2..1..2..2..1..1..1....6..6..6..6..6..6..6..6

CROSSREFS

Sequence in context: A155126 A234469 A212728 * A115505 A126435 A011571

Adjacent sequences:  A234417 A234418 A234419 * A234421 A234422 A234423

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 25 2013

STATUS

approved

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Last modified September 19 15:09 EDT 2020. Contains 337178 sequences. (Running on oeis4.)