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A200802 Number of n X n 0..2 arrays with no average of any element and its diagonal, antidiagonal, horizontal and vertical neighbors equal to one 0
2, 62, 4420, 2869182, 16571687222 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A200809

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for 3X3

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

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

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

CROSSREFS

Sequence in context: A091817 A239786 A209183 * A262005 A296278 A239744

Adjacent sequences:  A200799 A200800 A200801 * A200803 A200804 A200805

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 22 2011

STATUS

approved

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Last modified September 21 04:58 EDT 2020. Contains 337267 sequences. (Running on oeis4.)