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 | 4 |
| 2 | 6 |
| 3 | 7 |
| 4 | 11 |
| 5 | 30 |
| 6 | 31 |
| 7 | 50 |
| 8 | 64 |
| 9 | 77 |
| 10 | 146 |
| 11 | 163 |
| 12 | 185 |
| 13 | 210 |
| 14 | 354 |
| 15 | 367 |
| 16 | 402 |
| 17 | 3137 |
| 18 | 3228 |
| 19 | 3639 |
| 20 | 11756 |
| 21 | 22054 |
| 22 | 23126 |