a(n) is the permanent of the n X n matrix M_n with M_n(j,k) = j for j <> k, M_n(j,k) = n+j for j = k.
A386975
a(n) is the permanent of the n X n matrix M_n with M_n(j,k) = j for j <> k, M_n(j,k) = n+j for j = k.
Terms
- a(0) =1a(1) =2a(2) =14a(3) =183a(4) =3792a(5) =114780a(6) =4807728a(7) =267380071a(8) =19098388480
External references
- oeis: A386975