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A204950
Number of (n+2)X6 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..2 introduced in row major order
1
242852, 4566666, 94983268, 1616210763, 33301704234, 691810208216, 13020576504578, 263790704809901, 5371358916401630, 104618583626956845, 2101362288613315951, 42349487423534501630, 836505454550051062470
OFFSET
1,1
COMMENTS
Column 4 of A204954
LINKS
EXAMPLE
Some solutions for n=3
..0..0..1..1..1..0....0..0..0..0..1..0....0..0..1..2..0..0....0..1..0..0..0..0
..1..1..1..1..2..0....1..2..0..1..1..1....0..1..0..0..0..0....1..0..0..1..2..2
..2..2..2..1..2..0....0..2..0..1..1..2....0..0..0..0..1..1....1..0..0..1..1..1
..0..2..0..1..1..0....2..2..0..0..0..0....2..2..2..0..1..1....0..1..0..1..0..0
..1..1..1..1..1..0....2..2..0..1..1..1....0..0..1..0..1..2....0..0..0..1..2..1
CROSSREFS
Sequence in context: A078871 A249209 A066082 * A244545 A248447 A187534
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 20 2012
STATUS
approved