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.

A213539 Variant of numbers for which there is at least one 3-smooth representation that is special of level k.

Table of values

n a(n)
0 1
1 2
2 4
3 5
4 7
5 8
6 10
7 11
8 14
9 16
10 19
11 20
12 22
13 23
14 28
15 29
16 31
17 32
18 35
19 37
20 38
21 40
22 44
23 46
24 47
25 49
26 53
27 56
28 58
29 62
30 64
31 65
32 67
33 70
34 73
35 74
36 76
37 79
38 80
39 85
40 88
41 89
42 92
43 94
44 97
45 98
46 101
47 103
48 106
49 112
50 116
51 119
52 121
53 124
54 125
55 128
56 130
57 131
58 133
59 134
60 140
61 143
62 146

List of values

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 23, 28, 29, 31, 32, 35, 37, 38, 40, 44, 46, 47, 49, 53, 56, 58, 62, 64, 65, 67, 70, 73, 74, 76, 79, 80, 85, 88, 89, 92, 94, 97, 98, 101, 103, 106, 112, 116, 119, 121, 124, 125, 128, 130, 131, 133, 134, 140, 143, 146]