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.
n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 45 |
3 | 489 |
4 | 4941 |
5 | 47241 |
6 | 443001 |
7 | 4099689 |
8 | 37666701 |
9 | 344373849 |
10 | 3138111873 |
11 | 28528236009 |
12 | 258893786601 |
13 | 2346337687689 |
14 | 21242736192681 |
15 | 192165056625657 |
16 | 1737206429739021 |
17 | 15696171011450889 |
18 | 141756044468718681 |
19 | 1279754258848097769 |
20 | 11549782186278421905 |
21 | 104208561077631046089 |