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 | 12 |
| 3 | 20 |
| 4 | 28 |
| 5 | 36 |
| 6 | 44 |
| 7 | 52 |
| 8 | 60 |
| 9 | 68 |
| 10 | 76 |
| 11 | 92 |
| 12 | 100 |
| 13 | 108 |
| 14 | 124 |
| 15 | 132 |
| 16 | 148 |
| 17 | 172 |
| 18 | 188 |
| 19 | 220 |
| 20 | 268 |
| 21 | 292 |
| 22 | 388 |
| 23 | 412 |