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.

A239625 Irregular triangle of numbers k that have A238895(n) as the sum of the proper divisors of each k.

Table of values

n a(n)
2 4
3 6
4 25
5 18
6 51
7 91
8 32
9 125
10 161
11 209
12 221
13 75
14 215
15 287
16 407
17 527
18 551
19 98
20 175
21 335
22 671
23 767
24 1007
25 1247
26 1271
27 581
28 869
29 1241
30 1349
31 1541
32 1769
33 1829
34 1961
35 2021
36 545
37 749
38 1133
39 1313
40 1649
41 2573
42 2993
43 3053
44 3149
45 3233
46 243
47 791
48 1199
49 1391
50 1751
51 1919

List of values

[4, 6, 25, 18, 51, 91, 32, 125, 161, 209, 221, 75, 215, 287, 407, 527, 551, 98, 175, 335, 671, 767, 1007, 1247, 1271, 581, 869, 1241, 1349, 1541, 1769, 1829, 1961, 2021, 545, 749, 1133, 1313, 1649, 2573, 2993, 3053, 3149, 3233, 243, 791, 1199, 1391, 1751, 1919]