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) |
|---|---|
| 1 | 6 |
| 2 | 15 |
| 3 | 77 |
| 4 | 589 |
| 5 | 851 |
| 6 | 1363 |
| 7 | 15229 |
| 8 | 201563 |
| 9 | 512893 |
| 10 | 644251 |
| 11 | 1366553 |
| 12 | 3416003 |
| 13 | 7881197 |
| 14 | 377331139 |
| 15 | 400711231 |
| 16 | 2963563859 |
| 17 | 4035221017 |
| 18 | 28862500577 |
| 19 | 52027213697 |
| 20 | 133793658289 |
| 21 | 418298061641 |
| 22 | 1363588753103 |
| 23 | 1970239102459 |
| 24 | 6355462656397 |
| 25 | 136388198153719 |
| 26 | 465337655023099 |