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A220410
Equals two maps: number of 5Xn binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 5Xn array
0
1, 292, 4304, 139233, 2996186, 76047436
OFFSET
1,2
COMMENTS
Row 5 of A220406
EXAMPLE
Some solutions for n=3
..0..0..0....0..0..0....0..0..0....1..0..1....1..1..0....0..0..1....1..0..0
..0..0..0....1..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
..0..1..1....0..1..0....1..1..0....1..0..0....0..0..1....1..0..1....1..0..0
..0..1..0....0..0..1....1..0..0....0..0..0....1..0..0....0..1..0....0..1..0
..0..0..0....0..1..1....0..1..1....0..1..0....1..0..1....1..1..1....0..0..1
CROSSREFS
Sequence in context: A236049 A233755 A233749 * A232022 A231752 A221480
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 13 2012
STATUS
approved