Number of (n+2)X6 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally, vertically or nw-to-se diagonally exactly one way.

A204603

Number of (n+2)X6 0..2 arrays with every 3X3 subblock having three strictly increasing elements in a row horizontally, vertically or nw-to-se diagonally exactly one way.

Terms

    a(0) =2275645a(1) =4820300a(2) =5260434a(3) =10978524a(4) =69792825a(5) =774393122a(6) =4518555426a(7) =32448416953a(8) =349259705982

External references