A239376 Words of length n over the alphabet {0,...,n-1} that avoid the pattern 1223.

1, 1, 4, 27, 252, 2935, 40330, 632352, 11070192, 213109881, 4460816992, 100651469996, 2431215093846, 62514061904580, 1703115911340272, 48965931282533948, 1480607510447121328, 46944740372499336665

Offset: 0

Author

Chad Brewbaker, Mar 17 2014

Keywords

• nonn
• more

Crossrefs

Cf. A239295.

Extensions

a(8)-a(17) from Alois P. Heinz, Mar 19 2014