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A177325
Number of permutations of n copies of 1..7 with all adjacent differences <= 2 in absolute value.
0
56, 148146, 788946320, 5712786772130, 49254897805981056
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..5.
CROSSREFS
Sequence in context:
A009837
A308390
A093256
*
A135315
A135426
A028670
Adjacent sequences:
A177322
A177323
A177324
*
A177326
A177327
A177328
KEYWORD
nonn
AUTHOR
R. H. Hardin
May 06 2010
STATUS
approved
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Last modified August 2 10:23 EDT 2024. Contains 374838 sequences. (Running on oeis4.)