A293748 - cp's OEIS frontend

A293748 Number of sets of nonempty words with a total of n letters over nonary 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	15
5	45
6	136
7	430
8	1415
9	4845
10	17234
11	63497
12	242720
13	958754
14	3916799
15	16493831
16	71586602
17	319336319
18	1463096806
19	6869041635
20	33014439494
21	162130576595
22	812715417240
23	4151894763819
24	21595739171153
25	114222733829429
26	613789962584588
27	3347502798880170

[1, 1, 2, 6, 15, 45, 136, 430, 1415, 4845, 17234, 63497, 242720, 958754, 3916799, 16493831, 71586602, 319336319, 1463096806, 6869041635, 33014439494, 162130576595, 812715417240, 4151894763819, 21595739171153, 114222733829429, 613789962584588, 3347502798880170]

cp's OEIS Frontend

A293748 Number of sets of nonempty words with a total of n letters over nonary 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