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.

A185307 Numbers not divisible by the number of their distinct prime factors.

Table of values

n a(n)
1 1
2 15
3 21
4 33
5 35
6 39
7 45
8 51
9 55
10 57
11 63
12 65
13 69
14 70
15 75
16 77
17 85
18 87
19 91
20 93
21 95
22 99
23 110
24 111
25 115
26 117
27 119
28 123
29 129
30 130
31 133
32 135
33 140
34 141
35 143
36 145
37 147
38 153
39 154
40 155
41 159
42 161
43 170
44 171
45 175
46 177
47 182
48 183
49 185
50 187
51 189
52 190
53 201
54 203
55 205
56 207
57 209

List of values

[1, 15, 21, 33, 35, 39, 45, 51, 55, 57, 63, 65, 69, 70, 75, 77, 85, 87, 91, 93, 95, 99, 110, 111, 115, 117, 119, 123, 129, 130, 133, 135, 140, 141, 143, 145, 147, 153, 154, 155, 159, 161, 170, 171, 175, 177, 182, 183, 185, 187, 189, 190, 201, 203, 205, 207, 209]