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A197441 Number of nX7 0..2 arrays with no element equal to the average of its horizontal and vertical neighbors 1
400, 644328, 746250884, 811669674888, 903529041581340, 1002605692717130692, 1112998745351676081292, 1235511655153578238343970, 1371513250568819862402121642, 1522485346268679493501795851082 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A197442

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..11

EXAMPLE

Some solutions for n=4

..1..0..0..0..2..0..0....1..0..0..0..1..0..0....1..0..0..0..2..0..0

..0..0..1..0..2..1..2....0..0..1..1..1..0..1....0..0..1..0..2..2..1

..0..0..1..1..0..1..2....0..0..1..0..1..2..2....0..0..1..2..0..1..2

..1..0..0..2..2..2..0....1..0..0..2..2..2..1....1..0..0..2..2..2..0

CROSSREFS

Sequence in context: A151608 A022232 A151652 * A268366 A013767 A013895

Adjacent sequences: A197438 A197439 A197440 * A197442 A197443 A197444

KEYWORD

nonn

AUTHOR

R. H. Hardin Oct 15 2011

STATUS

approved

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Last modified February 9 08:04 EST 2023. Contains 360153 sequences. (Running on oeis4.)