Permanent of the n-th principal submatrix of A204429.
A204430
Permanent of the n-th principal submatrix of A204429.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =34a(4) =144a(5) =1032a(6) =6936a(7) =48816a(8) =530712a(9) =5005152a(10) =50015232a(11) =707802624a(12) =8714718720a(13) =112586112000
External references
- oeis: A204430