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A169934 Number of permutations of 1..n with the number moved left exceeding the number moved right by 2. 2
0, 0, 0, 1, 5, 66, 392, 4859, 34659, 482272, 4099634, 65762489, 653977909, 12026621478, 137361430156, 2862534403223, 36968414699239, 862935261673212, 12440701298168534, 321935664074780549 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

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

CROSSREFS

Column k=2 (or k=-2) of A062866.

Equal number moved left and right, see A062868.

Sequence in context: A263784 A263785 A263786 * A162443 A219678 A297743

Adjacent sequences:  A169931 A169932 A169933 * A169935 A169936 A169937

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 19 2010

EXTENSIONS

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

STATUS

approved

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Last modified April 18 22:08 EDT 2019. Contains 322237 sequences. (Running on oeis4.)