Permanent of the n-th principal submatrix of A204445.
A204446
Permanent of the n-th principal submatrix of A204445.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =9a(4) =34a(5) =116a(6) =792a(7) =4752a(8) =32304a(9) =202320a(10) =1991952a(11) =17927568a(12) =175473216a(13) =1613364480a(14) =20695108608a(15) =248341303296
External references
- oeis: A204446