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 | 13 |
| 2 | 17 |
| 3 | 18 |
| 4 | 20 |
| 5 | 21 |
| 6 | 27 |
| 7 | 28 |
| 8 | 30 |
| 9 | 32 |
| 10 | 41 |
| 11 | 42 |
| 12 | 43 |
| 13 | 46 |
| 14 | 47 |
| 15 | 49 |
| 16 | 53 |
| 17 | 55 |
| 18 | 56 |
| 19 | 58 |
| 20 | 59 |
| 21 | 63 |
| 22 | 69 |
| 23 | 72 |
| 24 | 75 |
| 25 | 81 |