Number of n X 5 0..3 arrays with rows and columns lexicographically nondecreasing read forwards and nonincreasing read backwards.
A201978
Number of n X 5 0..3 arrays with rows and columns lexicographically nondecreasing read forwards and nonincreasing read backwards.
Terms
- a(0) =4a(1) =208a(2) =38112a(3) =8002304a(4) =858105364a(5) =48452117136
External references
- oeis: A201978