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.

A046583 First denominator and then numerator of each element to the right of the central elements of the 1/4-Pascal triangle (by row), excluding 4's.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 5
6 1
7 1
8 9
9 1
10 1
11 19
12 13
13 1
14 1
15 1
16 8
17 17
18 1
19 1
20 2
21 35
22 49
23 21
24 1
25 1
26 119
27 2
28 35
29 25
30 1
31 1
32 259
33 189
34 95
35 29
36 1
37 1
38 1
39 112
40 1
41 71
42 1
43 31
44 33
45 1
46 1
47 2
48 483
49 1
50 183
51 1
52 102
53 157
54 37
55 1
56 1
57 2
58 849
59 1
60 285
61 565
62 2
63 97
64 41
65 1
66 1
67 2
68 1815
69 2
70 1419
71 1705
72 759
73 235
74 45
75 1
76 1
77 1

List of values

[1, 1, 1, 1, 5, 1, 1, 9, 1, 1, 19, 13, 1, 1, 1, 8, 17, 1, 1, 2, 35, 49, 21, 1, 1, 119, 2, 35, 25, 1, 1, 259, 189, 95, 29, 1, 1, 1, 112, 1, 71, 1, 31, 33, 1, 1, 2, 483, 1, 183, 1, 102, 157, 37, 1, 1, 2, 849, 1, 285, 565, 2, 97, 41, 1, 1, 2, 1815, 2, 1419, 1705, 759, 235, 45, 1, 1, 1]