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.

A050780 Numbers k such that sopfr(k) = sopfr(k + sopfr(k)).

Table of values

n a(n)
1 39
2 60
3 70
4 95
5 119
6 240
7 2079
8 2130
9 2183
10 3000
11 3125
12 3431
13 4250
14 6293
15 6468
16 9310
17 10164
18 10241
19 10679
20 13433
21 14039
22 14111
23 15561
24 16199
25 16799
26 23552
27 24601
28 27004
29 28116
30 28560
31 31416
32 32883
33 42112
34 44268
35 52193
36 52969
37 53754
38 59072

List of values

[39, 60, 70, 95, 119, 240, 2079, 2130, 2183, 3000, 3125, 3431, 4250, 6293, 6468, 9310, 10164, 10241, 10679, 13433, 14039, 14111, 15561, 16199, 16799, 23552, 24601, 27004, 28116, 28560, 31416, 32883, 42112, 44268, 52193, 52969, 53754, 59072]