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 | 6 |
| 4 | 8 |
| 5 | 30 |
| 6 | 40 |
| 7 | 164 |
| 8 | 176 |
| 9 | 189 |
| 10 | 218 |
| 11 | 370 |
| 12 | 597 |
| 13 | 603 |
| 14 | 1473 |
| 15 | 2176 |
| 16 | 2436 |
| 17 | 2548 |
| 18 | 2732 |
| 19 | 4758 |
| 20 | 5574 |