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.

A115585 Semiprimes with a semiprime sum of factors.

Table of values

n a(n)
1 4
2 9
3 14
4 21
5 25
6 26
7 33
8 38
9 46
10 49
11 57
12 62
13 69
14 74
15 85
16 93
17 94
18 106
19 121
20 129
21 133
22 134
23 145
24 166
25 169
26 177
27 178
28 205
29 213
30 217
31 218
32 226
33 237
34 249
35 253
36 254
37 262
38 265
39 278
40 289
41 309
42 314
43 334
44 361
45 362
46 393
47 398
48 417
49 422
50 445
51 466
52 469
53 489
54 493
55 502
56 505

List of values

[4, 9, 14, 21, 25, 26, 33, 38, 46, 49, 57, 62, 69, 74, 85, 93, 94, 106, 121, 129, 133, 134, 145, 166, 169, 177, 178, 205, 213, 217, 218, 226, 237, 249, 253, 254, 262, 265, 278, 289, 309, 314, 334, 361, 362, 393, 398, 417, 422, 445, 466, 469, 489, 493, 502, 505]