T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..2 introduced in row major order.
A204889
T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally, and new values 0..2 introduced in row major order.
Terms
- a(0) =1864a(1) =34925a(2) =34925a(3) =667323a(4) =1604961a(5) =667323a(6) =12188762a(7) =75253867a(8) =75253867a(9) =12188762a(10) =225832062a(11) =3254488094a(12) =8701605702a(13) =3254488094a(14) =225832062a(15) =4194241697a(16) =145204264396a(17) =903927237183a(18) =903927237183a(19) =145204264396
External references
- oeis: A204889