T(n,k)=Equals two maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nXk array.
A220279
T(n,k)=Equals two maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly two of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nXk array.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =6a(5) =2a(6) =4a(7) =25a(8) =25a(9) =4a(10) =7a(11) =87a(12) =148a(13) =87a(14) =7a(15) =12a(16) =322a(17) =1142a(18) =1142a(19) =322a(20) =12a(21) =21a(22) =1168a(23) =7987a(24) =14111a(25) =7987a(26) =1168a(27) =21a(28) =37a(29) =4303
External references
- oeis: A220279