T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nXk array.
A220461
T(n,k)=Equals one maps: number of nXk binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..1 nXk array.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =4a(5) =4a(6) =8a(7) =22a(8) =22a(9) =8a(10) =16a(11) =74a(12) =108a(13) =74a(14) =16a(15) =32a(16) =250a(17) =691a(18) =691a(19) =250a(20) =32a(21) =64a(22) =848a(23) =3872a(24) =6255a(25) =3872a(26) =848a(27) =64a(28) =128a(29) =2851
External references
- oeis: A220461