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 | 136 |
| 2 | 244 |
| 3 | 919 |
| 4 | 1459 |
| 5 | 2178 |
| 6 | 6514 |
| 7 | 58618 |
| 8 | 63804 |
| 9 | 76438 |
| 10 | 89883 |
| 11 | 157596 |
| 12 | 313625 |
| 13 | 2755907 |
| 14 | 6586433 |
| 15 | 8139850 |
| 16 | 9057586 |
| 17 | 144839908 |
| 18 | 277668893 |
| 19 | 304162700 |
| 20 | 344050075 |
| 21 | 756738746 |
| 22 | 1043820406 |
| 23 | 4370652168 |
| 24 | 11346057072 |
| 25 | 21914086555935085 |
| 26 | 37878721692554416 |
| 27 | 187864919457180831 |
| 28 | 375609204308055082 |
| 29 | 13397885590701080090 |
| 30 | 40091536165423401387 |