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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.

A351732 Number of length n word structures using an infinite alphabet with all distinct run-lengths and the first run length of a symbol less than that of previous symbols.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 2
5 3
6 7
7 8
8 12
9 17
10 46
11 51
12 84
13 114
14 172
15 437
16 520
17 810
18 1153
19 1699
20 2298
21 6075
22 6955
23 11219
24 15561
25 23308
26 31133
27 45544
28 107379
29 128475
30 200201
31 281480
32 413389
33 561028
34 806643
35 1071165
36 2514418
37 2952086
38 4619012
39 6364285
40 9436458

List of values

[1, 1, 1, 2, 2, 3, 7, 8, 12, 17, 46, 51, 84, 114, 172, 437, 520, 810, 1153, 1699, 2298, 6075, 6955, 11219, 15561, 23308, 31133, 45544, 107379, 128475, 200201, 281480, 413389, 561028, 806643, 1071165, 2514418, 2952086, 4619012, 6364285, 9436458]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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