Number of permutations of 1..2*n+3 with each element displaced by at least n.
A183246
Number of permutations of 1..2*n+3 with each element displaced by at least n.
Terms
- a(0) =44a(1) =206a(2) =1168a(3) =6984a(4) =41808a(5) =250464a(6) =1501248a(7) =9001344a(8) =53983488a(9) =323802624a(10) =1942422528a(11) =11652962304a(12) =69911482368a(13) =419443728384
External references
- oeis: A183246