Number of (n+2)X5 0..3 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
A184568
Number of (n+2)X5 0..3 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
Terms
- a(0) =545662a(1) =6803631a(2) =57374460a(3) =380532059a(4) =2113138210a(5) =10202200416a(6) =43935544294a(7) =171891306894a(8) =619309263773
External references
- oeis: A184568