Permanent of the n-th principal submatrix of A201208 (in square format).
A204252
Permanent of the n-th principal submatrix of A201208 (in square format).
Terms
- a(0) =1a(1) =5a(2) =18a(3) =132a(4) =876a(5) =8820a(6) =85392a(7) =1106496a(8) =14057280a(9) =223560000a(10) =3513456000a(11) =66305952000
External references
- oeis: A204252