A239370 Words of length n over the alphabet {0,...,n-1} that avoid the pattern 1122.

1, 1, 4, 27, 250, 2915, 40806, 664944

Offset

0,3

Links

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

Crossrefs

Cf. A239295.

Sequence in context: A138423 A239372 A239375 * A239369 A246526 A273994

Adjacent sequences: A239367 A239368 A239369 * A239371 A239372 A239373

Keyword

nonn,more

Author

Chad Brewbaker, Mar 17 2014

Status

approved