cp's OEIS Frontend

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.

A046226 First denominator and then numerator of elements to right of central elements of 1/2-Pascal triangle.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 2
6 3
7 1
8 1
9 2
10 5
11 1
12 1
13 2
14 11
15 2
16 7
17 1
18 1
19 1
20 9
21 2
22 9
23 1
24 1
25 1
26 20
27 2
28 27
29 2
30 11
31 1
32 1
33 2
34 67
35 1
36 19
37 2
38 13
39 1
40 1
41 2
42 147
43 2
44 105
45 2
46 51
47 2
48 15
49 1
50 1
51 1
52 126
53 1
54 78
55 1
56 33
57 2
58 17
59 1
60 1
61 1
62 273
63 1
64 204
65 1
66 111
67 2
68 83
69 2
70 19
71 1
72 1
73 1
74 477
75 1
76 315
77 2

List of values

[1, 1, 1, 1, 2, 3, 1, 1, 2, 5, 1, 1, 2, 11, 2, 7, 1, 1, 1, 9, 2, 9, 1, 1, 1, 20, 2, 27, 2, 11, 1, 1, 2, 67, 1, 19, 2, 13, 1, 1, 2, 147, 2, 105, 2, 51, 2, 15, 1, 1, 1, 126, 1, 78, 1, 33, 2, 17, 1, 1, 1, 273, 1, 204, 1, 111, 2, 83, 2, 19, 1, 1, 1, 477, 1, 315, 2]

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

Content is available under The OEIS End-User License Agreement.