Number of (n+2)X4 0..7 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
A185428
Number of (n+2)X4 0..7 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
Terms
- a(0) =284037544a(1) =21536560306
External references
- oeis: A185428