Permanent of the n-th principal submatrix of A204425.
A204426
Permanent of the n-th principal submatrix of A204425.
Terms
- a(0) =1a(1) =1a(2) =9a(3) =34a(4) =132a(5) =1032a(6) =6936a(7) =51912a(8) =530712a(9) =5005152a(10) =53529984a(11) =707802624a(12) =8714718720a(13) =119716185600
External references
- oeis: A204426