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A205582 Number of (n+1)X(n+1) 0..2 arrays with no 2X2 subblock having the same number of equal edges as its horizontal or vertical neighbors, and new values 0..2 introduced in row major order 0
14, 550, 48401, 8952876, 3619876639, 3232900348158 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A205590

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A292966 A109773 A294835 * A217582 A002010 A166185

Adjacent sequences:  A205579 A205580 A205581 * A205583 A205584 A205585

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 29 2012

STATUS

approved

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Last modified October 22 22:58 EDT 2018. Contains 316518 sequences. (Running on oeis4.)