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A239377
Words of length n over the alphabet {0,...,n-1} that avoid the pattern 1231.
0
1, 1, 4, 27, 252, 2935, 40336, 632870
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OFFSET
0,3
LINKS
Table of n, a(n) for n=0..7.
CROSSREFS
Cf.
A239295
.
Sequence in context:
A239378
A239376
A239373
*
A239371
A201996
A239368
Adjacent sequences:
A239374
A239375
A239376
*
A239378
A239379
A239380
KEYWORD
nonn
,
more
AUTHOR
Chad Brewbaker
, Mar 17 2014
STATUS
approved
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Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)