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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.

A053225 First differences of sigma(n) that are positive.

Table of values

n a(n)
1 2
2 1
3 3
4 6
5 7
6 5
7 16
8 10
9 7
10 21
11 22
12 4
13 36
14 11
15 16
16 42
17 31
18 6
19 43
20 22
21 34
22 54
23 40
24 76
25 36
26 26
27 66
28 48
29 10
30 108
31 34
32 8
33 23
34 60
35 58
36 48
37 123
38 40
39 10
40 16
41 72
42 106
43 5
44 140
45 24
46 60
47 144
48 56
49 16
50 132
51 73
52 61
53 114
54 106
55 172
56 106
57 96
58 126
59 66
60 216
61 53
62 56
63 156
64 127
65 76
66 204
67 44
68 36

List of values

[2, 1, 3, 6, 7, 5, 16, 10, 7, 21, 22, 4, 36, 11, 16, 42, 31, 6, 43, 22, 34, 54, 40, 76, 36, 26, 66, 48, 10, 108, 34, 8, 23, 60, 58, 48, 123, 40, 10, 16, 72, 106, 5, 140, 24, 60, 144, 56, 16, 132, 73, 61, 114, 106, 172, 106, 96, 126, 66, 216, 53, 56, 156, 127, 76, 204, 44, 36]

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