T(n,k)=Equals two maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..1 nXk array.
A220247
T(n,k)=Equals two maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..1 nXk array.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =5a(5) =2a(6) =4a(7) =18a(8) =18a(9) =4a(10) =7a(11) =37a(12) =143a(13) =37a(14) =7a(15) =12a(16) =85a(17) =816a(18) =816a(19) =85a(20) =12a(21) =21a(22) =184a(23) =4467a(24) =7140a(25) =4467a(26) =184a(27) =21a(28) =37a(29) =393
External references
- oeis: A220247