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 | 2 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 11 |
| 8 | 18 |
| 9 | 26 |
| 10 | 38 |
| 11 | 60 |
| 12 | 90 |
| 13 | 139 |
| 14 | 213 |
| 15 | 329 |
| 16 | 501 |
| 17 | 747 |
| 18 | 1144 |
| 19 | 1712 |
| 20 | 2548 |
| 21 | 3836 |
| 22 | 5732 |
| 23 | 8442 |
| 24 | 12654 |
| 25 | 18624 |