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 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 6 |
| 6 | 11 |
| 7 | 19 |
| 8 | 31 |
| 9 | 52 |
| 10 | 86 |
| 11 | 146 |
| 12 | 231 |
| 13 | 392 |
| 14 | 615 |
| 15 | 1006 |
| 16 | 1594 |
| 17 | 2612 |
| 18 | 4062 |
| 19 | 6518 |
| 20 | 10116 |
| 21 | 15958 |
| 22 | 24557 |
| 23 | 38565 |
| 24 | 58548 |