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A177303
Number of permutations of 5 copies of 1..n with all adjacent differences <= 3 in absolute value.
0
1, 1, 252, 756756, 11732745024, 52977847995072, 131319696504676680, 302061042944500510428, 847432462636241316703042
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OFFSET
0,3
COMMENTS
a(n) = (5n)!/120^n for n<=4.
LINKS
Table of n, a(n) for n=0..8.
CROSSREFS
Cf.
A014609
.
Sequence in context:
A203062
A259452
A177302
*
A014609
A172557
A068275
Adjacent sequences:
A177300
A177301
A177302
*
A177304
A177305
A177306
KEYWORD
nonn
AUTHOR
R. H. Hardin
, May 06 2010
EXTENSIONS
a(0), a(8) from
Alois P. Heinz
, Jan 19 2016
STATUS
approved
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Last modified April 19 17:51 EDT 2024. Contains 371797 sequences. (Running on oeis4.)