A293966 - cp's OEIS frontend

A293966 Number of sets of exactly four 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)
8	4
9	22
10	116
11	482
12	1966
13	7682
14	29845
15	115438
16	449870
17	1770788
18	7073065
19	28727652
20	118907910
21	502249944
22	2167410896
23	9563204836
24	43166853057
25	199391604156
26	942578850020
27	4559743209208
28	22566589645408
29	114215149597312
30	590875202641724
31	3122678708581528

[4, 22, 116, 482, 1966, 7682, 29845, 115438, 449870, 1770788, 7073065, 28727652, 118907910, 502249944, 2167410896, 9563204836, 43166853057, 199391604156, 942578850020, 4559743209208, 22566589645408, 114215149597312, 590875202641724, 3122678708581528]

cp's OEIS Frontend

A293966 Number of sets of exactly four 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