Number of n X n matrices of nonnegative entries with all columns summing to n and no horizontally adjacent zeros.
A383256
Number of n X n matrices of nonnegative entries with all columns summing to n and no horizontally adjacent zeros.
Terms
- a(0) =1a(1) =1a(2) =7a(3) =343a(4) =125465a(5) =366908001
External references
- oeis: A383256