Number of permutations of 1..n with the number moved left exceeding the number moved right by 2.
A169934
Number of permutations of 1..n with the number moved left exceeding the number moved right by 2.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =5a(5) =66a(6) =392a(7) =4859a(8) =34659a(9) =482272a(10) =4099634a(11) =65762489a(12) =653977909a(13) =12026621478a(14) =137361430156
External references
- oeis: A169934