Number of real n X n symmetric (0,1) matrices with nonzero permanent.
A118991
Number of real n X n symmetric (0,1) matrices with nonzero permanent.
Terms
- a(0) =1a(1) =5a(2) =39a(3) =753a(4) =25887a(5) =1842241a(6) =247531775a(7) =65994415105
External references
- oeis: A118991