Permanent of the n-th principal submatrix of A204441.
A204442
Permanent of the n-th principal submatrix of A204441.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =9a(4) =34a(5) =176a(6) =792a(7) =4752a(8) =32304a(9) =265248a(10) =1991952a(11) =17927568a(12) =175473216a(13) =1969256448a(14) =20695108608a(15) =248341303296
External references
- oeis: A204442