Number of permutations p of [n] whose fixed points j < n have a larger right neighbor p(j+1) > j.
A371800
Number of permutations p of [n] whose fixed points j < n have a larger right neighbor p(j+1) > j.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =18a(5) =85a(6) =494a(7) =3389a(8) =26730a(9) =238021a(10) =2360462a(11) =25791485a(12) =307793178a(13) =3982831525a(14) =55540518014a(15) =830287473629
External references
- oeis: A371800