Permanent of the n-th principal submatrix of A204431.
A204432
Permanent of the n-th principal submatrix of A204431.
Terms
- a(0) =2a(1) =1a(2) =9a(3) =40a(4) =132a(5) =1032a(6) =7824a(7) =51912a(8) =530712a(9) =5619456a(10) =53529984a(11) =707802624a(12) =9591229440a(13) =119716185600
External references
- oeis: A204432