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 | 5 |
| 4 | 8 |
| 5 | 11 |
| 6 | 23 |
| 7 | 26 |
| 8 | 59 |
| 9 | 83 |
| 10 | 89 |
| 11 | 116 |
| 12 | 1103 |
| 13 | 1568 |
| 14 | 5768 |
| 15 | 13376 |
| 16 | 17810 |
| 17 | 18614 |
| 18 | 66209 |
| 19 | 167933 |
| 20 | 188318 |