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) |
|---|---|
| 2 | 66747 |
| 3 | 18248 |
| 4 | 53097 |
| 5 | 2037018 |
| 6 | 142531 |
| 7 | 1691820 |
| 8 | 1322535 |
| 9 | 1659002 |
| 10 | 266251 |
| 11 | 6185640 |
| 12 | 95075 |
| 13 | 2518780 |
| 14 | 657645 |
| 15 | 325528 |
| 16 | 71971 |
| 17 | 2533260 |
| 18 | 21494113 |
| 19 | 682318 |
| 20 | 3114879 |
| 21 | 6523742 |
| 22 | 9196027 |
| 23 | 3588090 |
| 24 | 12492473 |
| 25 | 816078 |
| 26 | 14837001 |
| 27 | 12060370 |
| 28 | 2933065 |
| 29 | 12212058 |
| 30 | 3122953 |