Total number of points in all permutations of [n] that are fixed or reflected.
A335873
Total number of points in all permutations of [n] that are fixed or reflected.
Terms
- a(0) =0a(1) =1a(2) =4a(3) =10a(4) =48a(5) =216a(6) =1440a(7) =9360a(8) =80640a(9) =685440a(10) =7257600a(11) =76204800a(12) =958003200a(13) =11975040000a(14) =174356582400
External references
- oeis: A335873