A293115 - cp's OEIS frontend

A293115 Number of sets of nonempty words with a total of 2n letters over n-ary alphabet containing the n-th letter 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	8
3	53
4	410
5	3576
6	35878
7	391136
8	4666521
9	59096165
10	797628339
11	11282268353
12	167582833398
13	2587994886476
14	41585338511800
15	690912445945576
16	11870082701946292
17	209995330141487944
18	3824511903396303251
19	71496027436457015058
20	1371314535020854180410

[1, 1, 8, 53, 410, 3576, 35878, 391136, 4666521, 59096165, 797628339, 11282268353, 167582833398, 2587994886476, 41585338511800, 690912445945576, 11870082701946292, 209995330141487944, 3824511903396303251, 71496027436457015058, 1371314535020854180410]

cp's OEIS Frontend

A293115 Number of sets of nonempty words with a total of 2n letters over n-ary alphabet containing the n-th letter 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