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.

A356842 Numbers k such that the k-th composition in standard order does not cover an interval of positive integers (not gapless).

Table of values

n a(n)
1 9
2 12
3 17
4 19
5 24
6 25
7 28
8 33
9 34
10 35
11 39
12 40
13 48
14 49
15 51
16 56
17 57
18 60
19 65
20 66
21 67
22 69
23 70
24 71
25 73
26 76
27 79
28 80
29 81
30 88
31 96
32 97
33 98
34 99
35 100
36 103
37 104
38 112
39 113
40 115
41 120
42 121
43 124
44 129
45 130
46 131
47 132
48 133
49 134
50 135
51 137
52 138
53 139
54 140
55 141
56 142
57 143
58 144
59 145

List of values

[9, 12, 17, 19, 24, 25, 28, 33, 34, 35, 39, 40, 48, 49, 51, 56, 57, 60, 65, 66, 67, 69, 70, 71, 73, 76, 79, 80, 81, 88, 96, 97, 98, 99, 100, 103, 104, 112, 113, 115, 120, 121, 124, 129, 130, 131, 132, 133, 134, 135, 137, 138, 139, 140, 141, 142, 143, 144, 145]