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 | 3 |
| 6 | 5 |
| 7 | 7 |
| 8 | 12 |
| 9 | 17 |
| 10 | 28 |
| 11 | 41 |
| 12 | 65 |
| 13 | 96 |
| 14 | 150 |
| 15 | 221 |
| 16 | 342 |
| 17 | 506 |
| 18 | 771 |
| 19 | 1142 |
| 20 | 1731 |
| 21 | 2561 |
| 22 | 3855 |
| 23 | 5702 |
| 24 | 8538 |
| 25 | 12620 |
| 26 | 18817 |
| 27 | 27774 |
| 28 | 41276 |
| 29 | 60850 |
| 30 | 90139 |