Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly three ways, and new values 0..2 introduced in row major order.
A204276
Number of (n+2)X(n+2) 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly three ways, and new values 0..2 introduced in row major order.
Terms
- a(0) =108a(1) =622a(2) =128a(3) =244a(4) =736a(5) =1496a(6) =3664a(7) =10288a(8) =26048a(9) =69472a(10) =190912a(11) =513344a(12) =1395712
External references
- oeis: A204276