Number of permutations of 1..n with the number moved left exceeding the number moved right by 4 or more.
A179570
Number of permutations of 1..n with the number moved left exceeding the number moved right by 4 or more.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =8a(7) =276a(8) =2774a(9) =59939a(10) =693696a(11) =13728106a(12) =180768774a(13) =3638322281a(14) =54074432712
External references
- oeis: A179570