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A204883
Number of (n+2)X6 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly one way, and new values 0..3 introduced in row major order
0
61994345, 22654826769, 10058007480113, 1751372518792428, 544737295879911847
OFFSET
1,1
COMMENTS
Column 4 of A204884
EXAMPLE
Some solutions for n=3
..0..0..0..0..0..1....0..0..0..1..0..1....0..1..1..0..1..1....0..0..0..0..0..1
..2..3..3..0..0..3....2..0..2..1..0..1....2..2..1..0..0..3....0..2..0..0..3..2
..0..2..1..1..2..0....1..3..1..1..2..0....0..0..1..2..1..0....2..3..1..2..2..2
..1..1..1..1..1..1....3..3..3..1..2..2....3..3..3..3..3..3....2..2..2..2..2..3
..1..1..2..3..0..2....3..1..2..3..2..0....1..1..3..1..0..0....0..1..3..1..3..3
CROSSREFS
Sequence in context: A059003 A104931 A210298 * A096559 A203943 A125063
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 20 2012
STATUS
approved