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 | 28683369 |
| 2 | 36165987 |
| 3 | 38660193 |
| 4 | 86050107 |
| 5 | 108497961 |
| 6 | 115980579 |
| 7 | 131339637 |
| 8 | 138428433 |
| 9 | 140397543 |
| 10 | 153393669 |
| 11 | 160876287 |
| 12 | 258150321 |
| 13 | 277272567 |
| 14 | 296394813 |
| 15 | 315517059 |
| 16 | 325493883 |
| 17 | 347941737 |
| 18 | 353761551 |
| 19 | 372883797 |
| 20 | 373715199 |
| 21 | 392006043 |