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 | 10 |
| 5 | 17 |
| 6 | 26 |
| 7 | 37 |
| 8 | 50 |
| 9 | 65 |
| 10 | 82 |
| 11 | 101 |
| 12 | 122 |
| 13 | 145 |
| 14 | 170 |
| 15 | 197 |
| 16 | 226 |
| 17 | 257 |
| 18 | 290 |
| 19 | 420 |