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A324638
Number of permutations p of [2n] such that n is the maximum of 0 and the number of elements in any integer interval [p(i)..i+2n*[i<p(i)]].
2
1, 1, 1, 18, 215, 5320, 173111, 8041166, 483906047, 37296199680, 3556982106479, 412503302058958
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OFFSET
0,4
LINKS
Table of n, a(n) for n=0..11.
CROSSREFS
Cf.
A324563
,
A324564
.
Sequence in context:
A021764
A382701
A059357
*
A009470
A111991
A081136
Adjacent sequences:
A324635
A324636
A324637
*
A324639
A324640
A324641
KEYWORD
nonn
,
more
AUTHOR
Alois P. Heinz
, Mar 09 2019
STATUS
approved
