Number of permutations of length n with 1 fixed and 1 reflected point.
A007016
Number of permutations of length n with 1 fixed and 1 reflected point.
Terms
- a(0) =0a(1) =1a(2) =0a(3) =0a(4) =8a(5) =20a(6) =96a(7) =656a(8) =5568a(9) =48912a(10) =494080a(11) =5383552a(12) =65097600a(13) =840566080a(14) =11833898496a(15) =176621049600
External references
- oeis: A007016