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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.

A053227 First differences of sigma(n) that are negative.

Table of values

n a(n)
1 1
2 4
3 2
4 6
5 14
6 13
7 19
8 10
9 12
10 29
11 2
12 26
13 40
14 15
15 6
16 53
17 4
18 48
19 52
20 6
21 6
22 24
23 67
24 21
25 44
26 48
27 40
28 30
29 106
30 43
31 76
32 30
33 72
34 121
35 44
36 88
37 65
38 42
39 116
40 12
41 90
42 122
43 40
44 24
45 154
46 15
47 115
48 112
49 18
50 30
51 54
52 170
53 64
54 134
55 96
56 28
57 2
58 36
59 227
60 18
61 68
62 184
63 79
64 120
65 176
66 132
67 148

List of values

[1, 4, 2, 6, 14, 13, 19, 10, 12, 29, 2, 26, 40, 15, 6, 53, 4, 48, 52, 6, 6, 24, 67, 21, 44, 48, 40, 30, 106, 43, 76, 30, 72, 121, 44, 88, 65, 42, 116, 12, 90, 122, 40, 24, 154, 15, 115, 112, 18, 30, 54, 170, 64, 134, 96, 28, 2, 36, 227, 18, 68, 184, 79, 120, 176, 132, 148]

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