A179570 Number of permutations of 1..n with the number moved left exceeding the number moved right by 4 or more

0, 0, 0, 0, 0, 1, 8, 276, 2774, 59939, 693696, 13728106, 180768774, 3638322281, 54074432712, 1147607880440, 19083350797374, 432538009487375

Offset

1,7

Links

Table of n, a(n) for n=1..18.

Crossrefs

Equal number moved left and right, see A062868

Sequence in context: A335586 A159496 A045479 * A201188 A296411 A281763

Adjacent sequences: A179567 A179568 A179569 * A179571 A179572 A179573

Keyword

nonn

Author

R. H. Hardin Jul 19 2010

Status

approved