Number of n X n matrices with nonnegative integer entries such that every row sum equals 3.
A070307
Number of n X n matrices with nonnegative integer entries such that every row sum equals 3.
Terms
- a(0) =1a(1) =16a(2) =1000a(3) =160000a(4) =52521875a(5) =30840979456
External references
- oeis: A070307