A179562 Number of permutations of 1..n with the number moved left exceeding the number moved right by 1.

0, 0, 1, 4, 31, 146, 1289, 7736, 85831, 641302, 8732989, 78432212, 1270475155, 13338831858, 250740220345, 3013809363056, 64512904742895, 873589792390382, 20982459271174517, 316070362138732172

Offset

1,4

Links

Table of n, a(n) for n=1..20.

Crossrefs

Column k=1 (or k=-1) of A062866.

Equal number moved left and right, see A062868.

Sequence in context: A263761 A263762 A263763 * A281832 A299076 A270670

Adjacent sequences: A179559 A179560 A179561 * A179563 A179564 A179565

Keyword

nonn

Author

R. H. Hardin, Jul 19 2010

Extensions

a(19)-a(20) from Alois P. Heinz, Jul 31 2018

Status

approved