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.

A046611 First denominator and then numerator of the central elements of the 1/5-Pascal triangle (by row).

Table of values

n a(n)
1 1
2 1
3 5
4 1
5 5
6 12
7 5
8 46
9 1
10 34
11 1
12 126
13 5
14 2352
15 5
16 8844
17 5
18 33462
19 1
20 25454
21 1
22 97240
23 5
24 1864356
25 5
26 7171892
27 5
28 27665596
29 1
30 21395520
31 1
32 82907640
33 1
34 321868854
35 1
36 1251661518
37 1
38 4874644104
39 1
40 19010020260
41 1
42 74225053980
43 1
44 290134122564
45 1

List of values

[1, 1, 5, 1, 5, 12, 5, 46, 1, 34, 1, 126, 5, 2352, 5, 8844, 5, 33462, 1, 25454, 1, 97240, 5, 1864356, 5, 7171892, 5, 27665596, 1, 21395520, 1, 82907640, 1, 321868854, 1, 1251661518, 1, 4874644104, 1, 19010020260, 1, 74225053980, 1, 290134122564, 1]