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) |
|---|---|
| 2 | 0 |
| 3 | 2 |
| 4 | 6 |
| 5 | 12 |
| 6 | 19 |
| 7 | 27 |
| 8 | 39 |
| 9 | 51 |
| 10 | 65 |
| 11 | 81 |
| 12 | 98 |
| 13 | 116 |
| 14 | 139 |
| 15 | 163 |
| 16 | 188 |
| 17 | 214 |
| 18 | 242 |
| 19 | 272 |
| 20 | 303 |
| 21 | 335 |
| 22 | 375 |
| 23 | 413 |
| 24 | 453 |