Number of (n+2) X 9 0..2 arrays with every 3 X 3 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.
A204283
Number of (n+2) X 9 0..2 arrays with every 3 X 3 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) =29731a(1) =1883a(2) =1990a(3) =1914a(4) =2168a(5) =2860a(6) =3664a(7) =6784a(8) =15304a(9) =36408a(10) =95912a(11) =258472a(12) =698248a(13) =1903432a(14) =5196040a(15) =14182920a(16) =38742920a(17) =105842056a(18) =289142920a(19) =789944968a(20) =2158161544a(21) =5896163976a(22) =16108606088a(23) =44009516680a(24) =120236152456a(25) =328491253384
External references
- oeis: A204283