Equals two maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 nX3 array.
A220792
Equals two maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 nX3 array.
Terms
- a(0) =2a(1) =19a(2) =142a(3) =1224a(4) =9500a(5) =74581a(6) =568257a(7) =4365491a(8) =33310666a(9) =254686655a(10) =1943858975a(11) =14845643699a(12) =113333269572a(13) =865350109627
External references
- oeis: A220792