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A204865
Number of (n+2) X 8 0..1 arrays with every 3 X 3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..1 introduced in row major order.
1
75595, 603605, 5369493, 48713811, 462259671, 4356486501, 40833480416, 385816144851, 3642440054624, 34249495945028, 323403814654439, 3050971738074998, 28739189960559555, 271179030317522975
OFFSET
1,1
COMMENTS
Column 6 of A204867.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..0..1..1..0..1..0....0..0..0..1..0..0..0..0....0..0..0..1..1..0..1..1
..0..1..0..1..1..1..1..1....1..1..0..1..1..0..0..1....1..0..1..1..1..0..0..1
..1..1..0..0..0..0..0..0....1..0..0..1..0..1..1..1....1..1..0..1..0..0..0..1
..1..1..1..1..0..1..0..1....1..0..0..1..1..1..1..0....1..0..0..0..1..0..1..0
..0..0..1..1..0..1..1..1....1..1..0..0..0..0..0..1....0..1..0..1..1..1..1..1
CROSSREFS
Sequence in context: A204360 A236817 A140940 * A323025 A323804 A135209
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 20 2012
STATUS
approved