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A204276 Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly three ways, and new values 0..2 introduced in row major order 0
108, 622, 128, 244, 736, 1496, 3664, 10288, 26048, 69472, 190912, 513344, 1395712 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A204284
LINKS
EXAMPLE
Some solutions for n=4
..0..0..1..2..1..2....0..0..0..0..0..0....0..1..2..0..1..0....0..0..0..1..1..1
..0..0..1..2..1..2....1..1..1..1..1..1....0..1..2..0..1..0....0..0..1..1..1..2
..0..0..1..2..1..2....0..0..0..0..0..0....0..1..2..0..1..0....0..1..1..1..2..2
..0..0..1..2..1..2....0..0..0..0..0..0....0..1..2..0..1..0....1..1..1..2..2..2
..0..0..1..2..1..2....1..1..1..1..1..1....0..1..2..0..1..0....1..1..2..2..2..1
..0..0..1..2..1..2....2..2..2..2..2..2....0..1..2..0..1..0....1..2..2..2..0..0
CROSSREFS
Sequence in context: A160919 A129027 A288706 * A202194 A333757 A203373
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 13 2012
STATUS
approved

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Last modified March 28 16:28 EDT 2024. Contains 371254 sequences. (Running on oeis4.)