Permanent of the n-th principal submatrix of A204443.
A204444
Permanent of the n-th principal submatrix of A204443.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =9a(4) =34a(5) =140a(6) =672a(7) =4752a(8) =32304a(9) =230832a(10) =1780704a(11) =17927568a(12) =175473216a(13) =1780206336a(14) =18988867584a(15) =248341303296
External references
- oeis: A204444