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 | 2 |
| 3 | 4 |
| 4 | 5 |
| 5 | 14 |
| 6 | 21 |
| 7 | 31 |
| 8 | 54 |
| 9 | 65 |
| 10 | 69 |
| 11 | 77 |
| 12 | 171 |
| 13 | 205 |
| 14 | 674 |
| 15 | 675 |
| 16 | 705 |
| 17 | 717 |
| 18 | 740 |
| 19 | 782 |
| 20 | 919 |
| 21 | 1069 |
| 22 | 1204 |
| 23 | 1273 |