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 | 13 |
| 3 | 67 |
| 4 | 227 |
| 5 | 602 |
| 6 | 1358 |
| 7 | 2730 |
| 8 | 5034 |
| 9 | 8679 |
| 10 | 14179 |
| 11 | 22165 |
| 12 | 33397 |
| 13 | 48776 |
| 14 | 69356 |
| 15 | 96356 |
| 16 | 131172 |
| 17 | 175389 |
| 18 | 230793 |
| 19 | 299383 |
| 20 | 383383 |
| 21 | 485254 |
| 22 | 607706 |
| 23 | 753710 |
| 24 | 926510 |
| 25 | 1129635 |
| 26 | 1366911 |
| 27 | 1642473 |
| 28 | 1960777 |
| 29 | 2326612 |
| 30 | 2745112 |