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 | 6 |
| 3 | 7 |
| 4 | 12 |
| 5 | 13 |
| 6 | 18 |
| 7 | 23 |
| 8 | 24 |
| 9 | 38 |
| 10 | 39 |
| 11 | 44 |
| 12 | 45 |
| 13 | 50 |
| 14 | 51 |
| 15 | 56 |
| 16 | 62 |
| 17 | 77 |
| 18 | 115 |
| 19 | 121 |
| 20 | 153 |
| 21 | 312 |
| 22 | 333 |
| 23 | 350 |
| 24 | 427 |
| 25 | 553 |
| 26 | 554 |
| 27 | 579 |