A220576 Equals one maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..1 nX5 array.
16, 371, 8334, 165130, 3162375, 59690533, 1120269376, 20961430054, 391477041024, 7301113014734, 136014086356403, 2531419892514045, 47074407789101798, 874763025888567980, 16244954731049984109, 301509938118179385606
Offset: 1
Keywords
Examples
Some solutions for n=3 ..0..0..1..0..0....0..0..0..1..0....0..1..1..1..0....0..0..0..1..1 ..1..0..0..0..0....0..1..0..1..0....1..0..1..0..1....0..0..0..0..0 ..1..1..1..0..0....0..1..0..1..1....1..0..1..0..1....1..0..1..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..33
Comments