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.

A048124 Becomes prime or 4 after exactly 2 iterations of f(x) = sum of prime factors of x.

Table of values

n a(n)
1 8
2 9
3 21
4 25
5 30
6 32
7 35
8 36
9 42
10 50
11 57
12 60
13 64
14 72
15 81
16 85
17 86
18 93
19 102
20 111
21 115
22 121
23 122
24 138
25 145
26 146
27 159
28 164
29 174
30 182
31 187
32 194
33 215
34 219
35 235
36 236
37 237
38 253
39 258
40 260
41 265
42 266
43 282
44 284
45 287
46 289
47 302
48 303
49 308
50 312
51 318
52 319
53 326
54 329
55 338
56 346

List of values

[8, 9, 21, 25, 30, 32, 35, 36, 42, 50, 57, 60, 64, 72, 81, 85, 86, 93, 102, 111, 115, 121, 122, 138, 145, 146, 159, 164, 174, 182, 187, 194, 215, 219, 235, 236, 237, 253, 258, 260, 265, 266, 282, 284, 287, 289, 302, 303, 308, 312, 318, 319, 326, 329, 338, 346]