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 | 1 |
2 | 1 |
3 | 2 |
4 | 15 |
5 | 44 |
6 | 485 |
7 | 1854 |
8 | 25781 |
9 | 170288 |
10 | 2477485 |
11 | 12571140 |
12 | 435748665 |
13 | 2049818198 |
14 | 64651106637 |
15 | 628176476186 |
16 | 18837010964105 |
17 | 93248340364152 |
18 | 6695745240354169 |
19 | 33794005826851192 |
20 | 2549048418922818525 |
21 | 20209158430316698922 |
22 | 1138228671555859916609 |