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 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 41 |
| 5 | 45 |
| 6 | 83 |
| 7 | 95 |
| 8 | 181 |
| 9 | 193 |
| 10 | 195 |
| 11 | 311 |
| 12 | 325 |
| 13 | 901 |
| 14 | 1825 |
| 15 | 3649 |
| 16 | 7709 |
| 17 | 16335 |
| 18 | 45547 |