A294004 - cp's OEIS frontend

A294004 Number of multisets of exactly two nonempty words with a total of n letters over n-ary 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)
2	1
3	2
4	7
5	18
6	56
7	168
8	543
9	1792
10	6187
11	22088
12	81766
13	313224
14	1239764
15	5068320
16	21355894
17	92714368
18	413918310
19	1899260064
20	8941942444
21	43168351136
22	213385362136
23	1079240048256
24	5578228510556
25	29443746273792
26	158547033453372
27	870370433845888
28	4866859876496872

[1, 2, 7, 18, 56, 168, 543, 1792, 6187, 22088, 81766, 313224, 1239764, 5068320, 21355894, 92714368, 413918310, 1899260064, 8941942444, 43168351136, 213385362136, 1079240048256, 5578228510556, 29443746273792, 158547033453372, 870370433845888, 4866859876496872]

cp's OEIS Frontend

A294004 Number of multisets of exactly two nonempty words with a total of n letters over n-ary 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