A293734 - cp's OEIS frontend

A293734 Number of multisets of nonempty words with a total of n letters over quaternary 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	3
3	7
4	20
5	53
6	157
7	455
8	1393
9	4270
10	13495
11	42907
12	139323
13	455182
14	1510831
15	5042858
16	17044789
17	57891598
18	198665585
19	684615958
20	2379765470
21	8302157207
22	29177909254
23	102867895209
24	364981305292
25	1298526198294
26	4645569147108
27	16659856695779
28	60036951331540

[1, 1, 3, 7, 20, 53, 157, 455, 1393, 4270, 13495, 42907, 139323, 455182, 1510831, 5042858, 17044789, 57891598, 198665585, 684615958, 2379765470, 8302157207, 29177909254, 102867895209, 364981305292, 1298526198294, 4645569147108, 16659856695779, 60036951331540]

cp's OEIS Frontend

A293734 Number of multisets of nonempty words with a total of n letters over quaternary 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