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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.

A143594 Triangle read by rows, A051731 * (an infinite lower triangular matrix with 1's in the first column and the rest 2's).

Table of values

n a(n)
1 1
2 2
3 2
4 2
5 2
6 2
7 3
8 4
9 2
10 2
11 2
12 2
13 2
14 2
15 2
16 4
17 6
18 4
19 2
20 2
21 2
22 2
23 2
24 2
25 2
26 2
27 2
28 2
29 4
30 6
31 4
32 4
33 2
34 2
35 2
36 2
37 3
38 4
39 4
40 2
41 2
42 2
43 2
44 2
45 2
46 4
47 6
48 4
49 4
50 4
51 2
52 2
53 2
54 2
55 2
56 2
57 2
58 2
59 2
60 2
61 2
62 2
63 2
64 2
65 2
66 2
67 6
68 10
69 8
70 6
71 4
72 4
73 2
74 2
75 2
76 2
77 2
78 2
79 2
80 2
81 2
82 2
83 2
84 2
85 2
86 2
87 2
88 2
89 2
90 2
91 2

List of values

[1, 2, 2, 2, 2, 2, 3, 4, 2, 2, 2, 2, 2, 2, 2, 4, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 4, 6, 4, 4, 2, 2, 2, 2, 3, 4, 4, 2, 2, 2, 2, 2, 2, 4, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 6, 10, 8, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]

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