T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order.
A204971
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally at least two different ways, and new values 0..1 introduced in row major order.
Terms
- a(0) =166a(1) =1001a(2) =1001a(3) =6086a(4) =10416a(5) =6086a(6) =36522a(7) =107004a(8) =107004a(9) =36522a(10) =219755a(11) =1085013a(12) =1858301a(13) =1085013a(14) =219755a(15) =1323027a(16) =11064389a(17) =31837899a(18) =31837899a(19) =11064389a(20) =1323027a(21) =7962992a(22) =112737183a(23) =547910909a(24) =916967622a(25) =547910909a(26) =112737183
External references
- oeis: A204971