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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.

A046580 Numerators of the elements to the right of the central elements of the 1/4-Pascal triangle (by row).

Table of values

n a(n)
1 1
2 1
3 5
4 1
5 9
6 1
7 19
8 13
9 1
10 8
11 17
12 1
13 35
14 49
15 21
16 1
17 119
18 35
19 25
20 1
21 259
22 189
23 95
24 29
25 1
26 112
27 71
28 31
29 33
30 1
31 483
32 183
33 102
34 157
35 37
36 1
37 849
38 285
39 565
40 97
41 41
42 1
43 1815
44 1419
45 1705
46 759
47 235
48 45
49 1
50 1617
51 4543
52 616
53 497
54 70
55 49
56 1
57 3432
58 11011
59 7007
60 1729
61 637

List of values

[1, 1, 5, 1, 9, 1, 19, 13, 1, 8, 17, 1, 35, 49, 21, 1, 119, 35, 25, 1, 259, 189, 95, 29, 1, 112, 71, 31, 33, 1, 483, 183, 102, 157, 37, 1, 849, 285, 565, 97, 41, 1, 1815, 1419, 1705, 759, 235, 45, 1, 1617, 4543, 616, 497, 70, 49, 1, 3432, 11011, 7007, 1729, 637]