Number of 4Xn 0..1 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
A267790
Number of 4Xn 0..1 arrays with every repeated value in every row greater than or equal to, and in every column greater than, the previous repeated value.
Terms
- a(0) =9a(1) =81a(2) =729a(3) =5081a(4) =34173a(5) =211555a(6) =1262760a(7) =7263481a(8) =40755550a(9) =223936008a(10) =1210708628a(11) =6459502002a(12) =34095465344a(13) =178380596163a(14) =926424208370
External references
- oeis: A267790