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 | 7 |
| 4 | 14 |
| 5 | 15 |
| 6 | 175 |
| 7 | 855 |
| 8 | 2695 |
| 9 | 78127 |
| 10 | 103974 |
| 11 | 106695 |
| 12 | 121975 |
| 13 | 420210 |
| 14 | 487375 |
| 15 | 1299375 |
| 16 | 2174655 |
| 17 | 3895095 |
| 18 | 4151455 |
| 19 | 5842215 |
| 20 | 5951130 |
| 21 | 6508335 |
| 22 | 10637055 |
| 23 | 20117895 |
| 24 | 24482958 |
| 25 | 31999695 |
| 26 | 32282054 |
| 27 | 32620203 |
| 28 | 32872455 |
| 29 | 34258455 |