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.

A276700 Numbers n such that Sum_{p|n} 0.p is an integer where p ranges over the prime divisors, with multiplicity, of n.

Table of values

n a(n)
1 1
2 21
3 25
4 30
5 32
6 36
7 392
8 441
9 525
10 560
11 625
12 630
13 672
14 750
15 756
16 800
17 900
18 960
19 979
20 1024
21 1080
22 1152
23 1215
24 1296
25 1411
26 1458
27 1463
28 1547
29 1742
30 1947
31 2059
32 2090
33 2210
34 2318
35 2405
36 2419
37 2444
38 2491
39 2508
40 2552
41 2652
42 2703
43 2871
44 2886
45 2924
46 2945
47 3116
48 3128

List of values

[1, 21, 25, 30, 32, 36, 392, 441, 525, 560, 625, 630, 672, 750, 756, 800, 900, 960, 979, 1024, 1080, 1152, 1215, 1296, 1411, 1458, 1463, 1547, 1742, 1947, 2059, 2090, 2210, 2318, 2405, 2419, 2444, 2491, 2508, 2552, 2652, 2703, 2871, 2886, 2924, 2945, 3116, 3128]