Number of n X n 0..3 arrays with row sums equal and no column sum equal to the previous.
A202713
Number of n X n 0..3 arrays with row sums equal and no column sum equal to the previous.
Terms
- a(0) =4a(1) =28a(2) =4740a(3) =7788648a(4) =189412482924
External references
- oeis: A202713