A239371 Words of length n over the alphabet {0,...,n-1} that avoid the pattern 1123.

1, 1, 4, 27, 252, 2935, 40351, 633864, 11139840, 215800335, 4557031407, 103989209082, 2546369980589, 66521801043100, 1845008781481516, 54102505102771686, 1671315770146956704, 54219694639758864087, 1842085959295755494339, 65380444351870047159358

Offset: 0

Author

Chad Brewbaker, Mar 17 2014

Keywords

• nonn

Links

• Hiroaki Yamanouchi, Table of n, a(n) for n = 0..24

Crossrefs

Cf. A239295.

Extensions

a(8)-a(15) from Alois P. Heinz, Mar 17 2014

a(16)-a(19) from Hiroaki Yamanouchi, Oct 02 2014