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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.

A046533 First denominator and then numerator of 1/2-Pascal triangle (by row), excluding 2's.

Table of values

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

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 1, 1, 5, 1, 3, 5, 1, 1, 1, 1, 7, 11, 11, 7, 1, 1, 1, 1, 9, 1, 9, 1, 11, 1, 9, 9, 1, 1, 1, 1, 11, 27, 1, 20, 1, 20, 27, 11, 1, 1, 1, 1, 13, 1, 19, 67, 1, 40, 67, 1, 19, 13, 1, 1, 1, 1, 15, 51]