Number of permutations of 1..n with the number moved left exceeding the number moved right by 2 or more.
A179568
Number of permutations of 1..n with the number moved left exceeding the number moved right by 2 or more.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =6a(5) =73a(6) =534a(7) =6095a(8) =54048a(9) =680233a(10) =7218930a(11) =102769819a(12) =1279247260a(13) =20545125053a(14) =294350830326
External references
- oeis: A179568