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 | 3 |
| 3 | 4 |
| 4 | 8 |
| 5 | 21 |
| 6 | 26 |
| 7 | 35 |
| 8 | 56 |
| 9 | 61 |
| 10 | 77 |
| 11 | 200 |
| 12 | 536 |
| 13 | 695 |
| 14 | 789 |
| 15 | 904 |
| 16 | 1037 |
| 17 | 66885 |
| 18 | 70499 |
| 19 | 91835 |
| 20 | 100612 |
| 21 | 127239 |
| 22 | 380733 |
| 23 | 583695 |