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 | 21 |
| 2 | 31 |
| 3 | 32 |
| 4 | 39 |
| 5 | 42 |
| 6 | 62 |
| 7 | 67 |
| 8 | 75 |
| 9 | 82 |
| 10 | 91 |
| 11 | 93 |
| 12 | 97 |
| 13 | 104 |
| 14 | 109 |
| 15 | 121 |
| 16 | 127 |
| 17 | 135 |
| 18 | 137 |
| 19 | 139 |
| 20 | 140 |
| 21 | 145 |
| 22 | 146 |