Number of permutations of 1..n with i-10<=p(i)<=i+8.
A179368
Number of permutations of 1..n with i-10<=p(i)<=i+8.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =120a(5) =720a(6) =5040a(7) =40320a(8) =362880a(9) =3265920a(10) =29393280a(11) =243895680a(12) =1897504560a(13) =14087818800a(14) =101474613480a(15) =719229326904
External references
- oeis: A179368