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 | 337 |
| 2 | 2058 |
| 3 | 9109 |
| 4 | 32636 |
| 5 | 100843 |
| 6 | 279718 |
| 7 | 715685 |
| 8 | 1722176 |
| 9 | 3954037 |
| 10 | 8757506 |
| 11 | 18871133 |
| 12 | 39828260 |
| 13 | 82762159 |
| 14 | 170015870 |
| 15 | 346360653 |
| 16 | 701430696 |
| 17 | 1414589161 |
| 18 | 2844655514 |
| 19 | 5709353797 |
| 20 | 11444200908 |
| 21 | 22920272755 |
| 22 | 45879723734 |
| 23 | 91806810133 |