Number of n X n 0..3 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other.
A201386
Number of n X n 0..3 arrays with rows and columns lexicographically nondecreasing and the instance counts of every value within one of each other.
Terms
- a(0) =4a(1) =8a(2) =1606a(3) =312604a(4) =9842070647
External references
- oeis: A201386