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.

A168521 Sort numbers by value of sum of squares of prime factors (cf. A067666). Break ties by putting smaller numbers first. Begin with 0, 1.

Table of values

n a(n)
1 0
2 1
3 2
4 4
5 3
6 8
7 6
8 16
9 12
10 9
11 32
12 24
13 18
14 64
15 5
16 48
17 36
18 27
19 128
20 10
21 96
22 72
23 54
24 256
25 20
26 192
27 15
28 144
29 108
30 81
31 512
32 40
33 384
34 30
35 288
36 216
37 162
38 1024
39 80
40 768
41 60
42 576
43 45
44 432
45 324
46 2048
47 160
48 243
49 1536
50 120
51 1152
52 90
53 864
54 648
55 4096
56 7
57 320
58 486
59 3072
60 25
61 240

List of values

[0, 1, 2, 4, 3, 8, 6, 16, 12, 9, 32, 24, 18, 64, 5, 48, 36, 27, 128, 10, 96, 72, 54, 256, 20, 192, 15, 144, 108, 81, 512, 40, 384, 30, 288, 216, 162, 1024, 80, 768, 60, 576, 45, 432, 324, 2048, 160, 243, 1536, 120, 1152, 90, 864, 648, 4096, 7, 320, 486, 3072, 25, 240]