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.

A088007 Numbers n such that abs(sigma(n) - 2n) <= sqrt(n).

Table of values

n a(n)
1 1
2 2
3 4
4 6
5 8
6 10
7 16
8 18
9 20
10 28
11 32
12 44
13 50
14 52
15 64
16 70
17 88
18 104
19 110
20 128
21 130
22 136
23 152
24 174
25 184
26 186
27 196
28 222
29 232
30 246
31 256
32 258
33 272
34 282
35 304
36 315
37 318
38 354
39 366
40 368
41 402
42 426
43 438
44 464
45 474
46 496
47 498
48 512
49 534
50 550
51 582
52 592
53 606
54 618
55 642
56 650
57 654

List of values

[1, 2, 4, 6, 8, 10, 16, 18, 20, 28, 32, 44, 50, 52, 64, 70, 88, 104, 110, 128, 130, 136, 152, 174, 184, 186, 196, 222, 232, 246, 256, 258, 272, 282, 304, 315, 318, 354, 366, 368, 402, 426, 438, 464, 474, 496, 498, 512, 534, 550, 582, 592, 606, 618, 642, 650, 654]