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 | 1 |
| 2 | 4 |
| 3 | 12 |
| 4 | 77 |
| 5 | 44 |
| 6 | 363 |
| 7 | 484 |
| 8 | 4444 |
| 9 | 79497 |
| 10 | 14003 |
| 11 | 88088 |
| 12 | 175857 |
| 13 | 1596595 |
| 14 | 1716517 |
| 15 | 17794887 |
| 16 | 13528163 |
| 17 | 176599676 |
| 18 | 839546037 |
| 19 | 1317544822 |
| 20 | 853595347 |
| 21 | 8836886388 |
| 22 | 13236127322 |
| 23 | 13297007933 |
| 24 | 668823329856 |
| 25 | 175304440267 |
| 26 | 909153350908 |
| 27 | 9317488848228 |
| 28 | 8813200023188 |