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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.

A206424 The number of 1's in row n of Pascal's Triangle (mod 3).

Table of values

n a(n)
0 1
1 2
2 2
3 2
4 4
5 4
6 2
7 4
8 5
9 2
10 4
11 4
12 4
13 8
14 8
15 4
16 8
17 10
18 2
19 4
20 5
21 4
22 8
23 10
24 5
25 10
26 14
27 2
28 4
29 4
30 4
31 8
32 8
33 4
34 8
35 10
36 4
37 8
38 8
39 8
40 16
41 16
42 8
43 16
44 20
45 4
46 8
47 10
48 8
49 16
50 20
51 10
52 20
53 28
54 2
55 4
56 5
57 4
58 8
59 10
60 5
61 10
62 14
63 4
64 8
65 10
66 8
67 16
68 20
69 10
70 20
71 28
72 5
73 10
74 14
75 10
76 20
77 28

List of values

[1, 2, 2, 2, 4, 4, 2, 4, 5, 2, 4, 4, 4, 8, 8, 4, 8, 10, 2, 4, 5, 4, 8, 10, 5, 10, 14, 2, 4, 4, 4, 8, 8, 4, 8, 10, 4, 8, 8, 8, 16, 16, 8, 16, 20, 4, 8, 10, 8, 16, 20, 10, 20, 28, 2, 4, 5, 4, 8, 10, 5, 10, 14, 4, 8, 10, 8, 16, 20, 10, 20, 28, 5, 10, 14, 10, 20, 28]

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