a(n) is the number of distinct values of the permanent of an n X n Hankel matrix using the integers 0 to 2*(n - 1).
A369945
a(n) is the number of distinct values of the permanent of an n X n Hankel matrix using the integers 0 to 2*(n - 1).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =39a(4) =1710a(5) =128502a(6) =13644965
External references
- oeis: A369945