Permanent of the n-th principal submatrix of A204423.
A204424
Permanent of the n-th principal submatrix of A204423.
Terms
- a(0) =0a(1) =2a(2) =9a(3) =16a(4) =144a(5) =1032a(6) =5184a(7) =48816a(8) =530712a(9) =4188672a(10) =50015232a(11) =707802624a(12) =7614259200a(13) =112586112000
External references
- oeis: A204424