Number of (n+2)X9 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..3 introduced in row major order.
A204482
Number of (n+2)X9 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..3 introduced in row major order.
Terms
- a(0) =70726a(1) =111707a(2) =34964a(3) =33788a(4) =35990a(5) =47369a(6) =66580a(7) =159783a(8) =520508a(9) =1817618a(10) =6795292a(11) =25689877a(12) =97112294a(13) =368075253a(14) =1395441180a(15) =5289843312a(16) =20055181002a(17) =76035026065a(18) =288268814608
External references
- oeis: A204482