cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A293798 Number of multisets of nonempty words with a total of n letters over ternary alphabet containing the third 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

n a(n)
3 1
4 4
5 17
6 58
7 193
8 603
9 1852
10 5539
11 16391
12 47919
13 139258
14 402365
15 1159175
16 3330974
17 9561080
18 27421882
19 78642072
20 225566206
21 647308614
22 1858741431
23 5341591906
24 15363474607
25 44228744168
26 127444421304
27 367573522408
28 1061131077602
29 3066124030310
30 8867379519154

List of values

[1, 4, 17, 58, 193, 603, 1852, 5539, 16391, 47919, 139258, 402365, 1159175, 3330974, 9561080, 27421882, 78642072, 225566206, 647308614, 1858741431, 5341591906, 15363474607, 44228744168, 127444421304, 367573522408, 1061131077602, 3066124030310, 8867379519154]