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 | 2 |
| 2 | 5 |
| 3 | 11 |
| 4 | 22 |
| 5 | 42 |
| 6 | 76 |
| 7 | 134 |
| 8 | 228 |
| 9 | 379 |
| 10 | 606 |
| 11 | 985 |
| 12 | 1528 |
| 13 | 2364 |
| 14 | 3576 |
| 15 | 5419 |
| 16 | 7988 |
| 17 | 11868 |
| 18 | 17163 |
| 19 | 24937 |
| 20 | 35599 |
| 21 | 50787 |
| 22 | 71290 |
| 23 | 100748 |
| 24 | 139734 |
| 25 | 194113 |