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 | 1 |
| 4 | 2 |
| 5 | 4 |
| 6 | 6 |
| 7 | 10 |
| 8 | 16 |
| 9 | 26 |
| 10 | 42 |
| 11 | 66 |
| 12 | 102 |
| 13 | 156 |
| 14 | 238 |
| 15 | 364 |
| 16 | 560 |
| 17 | 868 |
| 18 | 1354 |
| 19 | 2120 |
| 20 | 3322 |
| 21 | 5198 |
| 22 | 8112 |
| 23 | 12624 |
| 24 | 19602 |
| 25 | 30400 |
| 26 | 47138 |
| 27 | 73138 |
| 28 | 113598 |
| 29 | 176630 |
| 30 | 274858 |