Number of permutations of 1..n with the number moved left exceeding the number moved right by 0 or more.
A179566
Number of permutations of 1..n with the number moved left exceeding the number moved right by 0 or more.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =19a(5) =83a(6) =501a(7) =3217a(8) =26489a(9) =223001a(10) =2307265a(11) =23964881a(12) =297799569a(13) =3677298385a(14) =53294334289a(15) =762583317329
External references
- oeis: A179566