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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.

A046567 First denominator and then numerator of the 1/4-Pascal triangle (by row), excluding 1's and 4's.

Table of values

n a(n)
1 5
2 5
3 9
4 2
5 5
6 9
7 13
8 19
9 19
10 13
11 17
12 8
13 2
14 19
15 8
16 17
17 21
18 49
19 2
20 35
21 2
22 35
23 49
24 21
25 25
26 2
27 35
28 119
29 35
30 119
31 2
32 35
33 25
34 29
35 95
36 189
37 259
38 259
39 189
40 95
41 29
42 33
43 31
44 71
45 112
46 2
47 259
48 112
49 71
50 31
51 33
52 37
53 157
54 102
55 183
56 2
57 483
58 2
59 483
60 183
61 102
62 157
63 37
64 41
65 2
66 97
67 565
68 285
69 2

List of values

[5, 5, 9, 2, 5, 9, 13, 19, 19, 13, 17, 8, 2, 19, 8, 17, 21, 49, 2, 35, 2, 35, 49, 21, 25, 2, 35, 119, 35, 119, 2, 35, 25, 29, 95, 189, 259, 259, 189, 95, 29, 33, 31, 71, 112, 2, 259, 112, 71, 31, 33, 37, 157, 102, 183, 2, 483, 2, 483, 183, 102, 157, 37, 41, 2, 97, 565, 285, 2]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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