Number of (n+2)X(n+2) 0..5 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
A186171
Number of (n+2)X(n+2) 0..5 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
Terms
- a(0) =520017a(1) =311128593a(2) =188034884094
External references
- oeis: A186171