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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.

A245649 Numbers n such that the sum of the non-anti-divisors of n is a multiple of the sum of the anti-divisors of n.

Table of values

n a(n)
1 3
2 5
3 12
4 27
5 39
6 41
7 48
8 63
9 324
10 1275
11 1599
12 2259
13 2304
14 3124
15 3724
16 14295
17 19464
18 21659
19 40655
20 44659
21 262983
22 338064
23 485463
24 505407
25 686700
26 696795
27 898528
28 1595384
29 10377100
30 12332927
31 14452991
32 14883967
33 21024479
34 23068975
35 25527535
36 30971420
37 37471143

List of values

[3, 5, 12, 27, 39, 41, 48, 63, 324, 1275, 1599, 2259, 2304, 3124, 3724, 14295, 19464, 21659, 40655, 44659, 262983, 338064, 485463, 505407, 686700, 696795, 898528, 1595384, 10377100, 12332927, 14452991, 14883967, 21024479, 23068975, 25527535, 30971420, 37471143]

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

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