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A183461
Number of (n+4)X8 binary arrays with every 1 having exactly three king-move neighbors equal to 1 but with no 2X2 blocks of 1s
1
3, 19, 69, 199, 1577, 6125, 20625, 153353, 622193, 2445793, 16246733, 68704747, 294587103, 1786187735, 7815231605, 35323362355, 200851434261, 903548912739, 4218720642855, 22940107065767, 105479993585991, 502480038340453
OFFSET
1,1
COMMENTS
Column 4 of A183465
LINKS
EXAMPLE
Some solutions for 7X8
..0..0..0..0..1..0..0..0....0..0..0..0..0..0..0..0....0..0..1..0..0..0..0..0
..0..0..0..1..1..1..0..0....0..0..1..1..1..0..0..0....0..1..1..1..0..0..0..0
..0..0..1..0..0..0..1..0....0..1..0..1..0..1..0..0....1..0..0..0..1..0..0..0
..0..1..1..0..0..1..1..0....1..1..0..0..0..1..1..0....1..1..0..1..1..0..0..0
..0..1..0..0..0..1..0..0....0..1..0..1..0..1..0..0....1..0..0..0..1..0..0..0
..0..0..1..1..1..0..0..0....0..0..1..1..1..0..0..0....0..1..1..1..0..0..0..0
..0..0..0..1..0..0..0..0....0..0..0..0..0..0..0..0....0..0..1..0..0..0..0..0
CROSSREFS
Sequence in context: A064056 A211061 A059599 * A095662 A090698 A350713
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 05 2011
STATUS
approved