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.

A307112 Primitive 3-abundant numbers: Numbers k such that sigma(k) > 3k (A068403) all of whose proper divisors d are 3-deficient numbers having sigma(d) < 3d.

Table of values

n a(n)
1 180
2 420
3 504
4 660
5 780
6 1584
7 1848
8 1872
9 1890
10 2184
11 2352
12 2376
13 2772
14 2856
15 3150
16 3192
17 3276
18 4284
19 4410
20 4788
21 4896
22 5100
23 5292
24 5700
25 5796
26 6864
27 6900
28 6930
29 7344
30 7728
31 8190
32 8208
33 8424
34 9744
35 10296
36 10416
37 10710
38 10944
39 11550
40 11970
41 12012
42 12432
43 12870

List of values

[180, 420, 504, 660, 780, 1584, 1848, 1872, 1890, 2184, 2352, 2376, 2772, 2856, 3150, 3192, 3276, 4284, 4410, 4788, 4896, 5100, 5292, 5700, 5796, 6864, 6900, 6930, 7344, 7728, 8190, 8208, 8424, 9744, 10296, 10416, 10710, 10944, 11550, 11970, 12012, 12432, 12870]