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.

A270807 Trajectory of 1 under the map n -> n + n/gpf(n) + 1 (see A269304).

Table of values

n a(n)
1 1
2 3
3 5
4 7
5 9
6 13
7 15
8 19
9 21
10 25
11 31
12 33
13 37
14 39
15 43
16 45
17 55
18 61
19 63
20 73
21 75
22 91
23 99
24 109
25 111
26 115
27 121
28 133
29 141
30 145
31 151
32 153
33 163
34 165
35 181
36 183
37 187
38 199
39 201
40 205
41 211
42 213
43 217
44 225
45 271
46 273
47 295
48 301
49 309
50 313
51 315
52 361
53 381
54 385
55 421
56 423
57 433
58 435
59 451
60 463
61 465

List of values

[1, 3, 5, 7, 9, 13, 15, 19, 21, 25, 31, 33, 37, 39, 43, 45, 55, 61, 63, 73, 75, 91, 99, 109, 111, 115, 121, 133, 141, 145, 151, 153, 163, 165, 181, 183, 187, 199, 201, 205, 211, 213, 217, 225, 271, 273, 295, 301, 309, 313, 315, 361, 381, 385, 421, 423, 433, 435, 451, 463, 465]