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.

A273992 Numbers whose sum of anti-divisors is equal to the sum of its unitary divisors.

Table of values

n a(n)
1 11
2 22
3 33
4 65
5 82
6 140
7 218
8 228
9 483
10 537
11 616
12 1184
13 2889
14 6430
15 10216
16 15849
17 21541
18 59620
19 112590
20 117818
21 130356
22 483153
23 3028671
24 3589646
25 7231219
26 8515767
27 13050345
28 36494625
29 44498344
30 50414595
31 217728002
32 459644211
33 519061576
34 1217532421
35 1573368218

List of values

[11, 22, 33, 65, 82, 140, 218, 228, 483, 537, 616, 1184, 2889, 6430, 10216, 15849, 21541, 59620, 112590, 117818, 130356, 483153, 3028671, 3589646, 7231219, 8515767, 13050345, 36494625, 44498344, 50414595, 217728002, 459644211, 519061576, 1217532421, 1573368218]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.