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A221288
Equals two maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal and antidiagonal neighbors in a random 0..3 nX5 array
0
7, 200, 5912, 172904, 4983598, 143511784, 4129628435, 118813480496, 3418203388701, 98338490101681, 2829094038032543, 81389941488977962, 2341498869979723606, 67362334665049967042, 1937939871911867309221
OFFSET
1,1
COMMENTS
Column 5 of A221290
EXAMPLE
Some solutions for n=3
..0..1..1..0..1....0..0..0..0..0....0..0..0..0..0....0..0..0..1..0
..1..0..0..1..1....0..0..0..0..0....0..0..0..0..1....1..1..1..1..1
..0..0..0..1..0....1..0..1..0..0....1..1..1..1..0....0..0..1..0..0
CROSSREFS
Sequence in context: A057204 A124988 A220934 * A355087 A276537 A233507
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 09 2013
STATUS
approved