Number of (n+2)X(n+2) 0..3 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
A184565
Number of (n+2)X(n+2) 0..3 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
Terms
- a(0) =14178a(1) =993538a(2) =57374460a(3) =2943827443a(4) =136680720320
External references
- oeis: A184565