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A259779 Number of permutations p of [n] with no fixed points and displacement of elements restricted by six: 1 <= |p(i)-i| <= 6. 5

%I #11 Jul 19 2015 19:29:47

%S 1,0,1,2,9,44,265,1854,10860,55314,259285,1178912,5382017,25157980,

%T 121727936,598440744,2954197380,14540741660,71135825805,345881286126,

%U 1675123912129,8108391695252,39291412775944,190687692089500,926601640342609,4505656310652572

%N Number of permutations p of [n] with no fixed points and displacement of elements restricted by six: 1 <= |p(i)-i| <= 6.

%H Alois P. Heinz, <a href="/A259779/b259779.txt">Table of n, a(n) for n = 0..1000</a>

%H Vaclav Kotesovec, <a href="/A259779/a259779.txt">Recurrence (of order 494) and g.f.</a>

%Y Column k=6 of A259776.

%Y Cf. A260111.

%K nonn

%O 0,4

%A _Alois P. Heinz_, Jul 05 2015

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Last modified April 27 08:40 EDT 2024. Contains 372017 sequences. (Running on oeis4.)