Number of (n+2)X3 0..7 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
A185427
Number of (n+2)X3 0..7 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
Terms
- a(0) =6842284a(1) =284037544a(2) =8653394212a(3) =212298419684
External references
- oeis: A185427