A293742 - cp's OEIS frontend

A293742 Number of sets of nonempty words with a total of n letters over ternary alphabet such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.

n	a(n)
0	1
1	1
2	2
3	6
4	14
5	39
6	104
7	284
8	775
9	2145
10	5941
11	16563
12	46329
13	130100
14	366432
15	1035191
16	2931797
17	8323290
18	23680142
19	67505721
20	192791938
21	551537506
22	1580315319
23	4534715008
24	13030197881
25	37489497472
26	107991978290
27	311433926717
28	899093131819
29	2598257241179

[1, 1, 2, 6, 14, 39, 104, 284, 775, 2145, 5941, 16563, 46329, 130100, 366432, 1035191, 2931797, 8323290, 23680142, 67505721, 192791938, 551537506, 1580315319, 4534715008, 13030197881, 37489497472, 107991978290, 311433926717, 899093131819, 2598257241179]

cp's OEIS Frontend

A293742 Number of sets of nonempty words with a total of n letters over ternary alphabet such that within each prefix of a word every letter of the alphabet is at least as frequent as the subsequent alphabet letter.

Table of values

List of values