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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.

A087998 a(n) = smallest number x such that sigma(x) = 2x + 2n.

Table of values

n a(n)
0 6
1 20
2 12
3 8925
4 56
5 40
6 24
7 272
8 550
9 208
10 176
11 1312
12 112
13 80
14 48
15 945
16 572
17 928
18 2205
19 5696
20 736
21 9555
22 350
23 490
24 60
25 416
26 352
27 90
28 84
29 160
30 96
31 24704
32 108
33 3904
34 260
35 487936
36 132
37 1575
38 340
39 234
40 156
41 22144
42 2752
43 2624
44 460
45 306
46 500
47 475648
48 204

List of values

[6, 20, 12, 8925, 56, 40, 24, 272, 550, 208, 176, 1312, 112, 80, 48, 945, 572, 928, 2205, 5696, 736, 9555, 350, 490, 60, 416, 352, 90, 84, 160, 96, 24704, 108, 3904, 260, 487936, 132, 1575, 340, 234, 156, 22144, 2752, 2624, 460, 306, 500, 475648, 204]

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

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