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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.

A108872 Sums of ordinal references for a triangular table read by columns, top to bottom.

Table of values

n a(n)
1 2
2 3
3 4
4 4
5 5
6 6
7 5
8 6
9 7
10 8
11 6
12 7
13 8
14 9
15 10
16 7
17 8
18 9
19 10
20 11
21 12
22 8
23 9
24 10
25 11
26 12
27 13
28 14
29 9
30 10
31 11
32 12
33 13
34 14
35 15
36 16
37 10
38 11
39 12
40 13
41 14
42 15
43 16
44 17
45 18
46 11
47 12
48 13
49 14
50 15
51 16
52 17
53 18
54 19
55 20
56 12
57 13
58 14
59 15
60 16
61 17
62 18
63 19
64 20
65 21
66 22
67 13
68 14
69 15
70 16
71 17
72 18
73 19
74 20
75 21
76 22

List of values

[2, 3, 4, 4, 5, 6, 5, 6, 7, 8, 6, 7, 8, 9, 10, 7, 8, 9, 10, 11, 12, 8, 9, 10, 11, 12, 13, 14, 9, 10, 11, 12, 13, 14, 15, 16, 10, 11, 12, 13, 14, 15, 16, 17, 18, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22]

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