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A239372 Words of length n over the alphabet {0,...,n-1} that avoid the pattern 1212. 0
1, 1, 4, 27, 250, 2915, 40746, 661304 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..7.

CROSSREFS

Cf. A239295.

Sequence in context: A051863 A000699 A138423 * A239375 A239370 A239369

Adjacent sequences:  A239369 A239370 A239371 * A239373 A239374 A239375

KEYWORD

nonn,more

AUTHOR

Chad Brewbaker, Mar 17 2014

STATUS

approved

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Last modified April 11 00:03 EDT 2021. Contains 342877 sequences. (Running on oeis4.)