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 | 3 |
| 2 | 7 |
| 3 | 13 |
| 4 | 17 |
| 5 | 19 |
| 6 | 31 |
| 7 | 37 |
| 8 | 71 |
| 9 | 73 |
| 10 | 79 |
| 11 | 97 |
| 12 | 137 |
| 13 | 139 |
| 14 | 173 |
| 15 | 179 |
| 16 | 193 |
| 17 | 197 |
| 18 | 317 |
| 19 | 379 |
| 20 | 397 |
| 21 | 719 |
| 22 | 739 |
| 23 | 937 |
| 24 | 971 |
| 25 | 1973 |
| 26 | 3719 |
| 27 | 3917 |
| 28 | 7193 |
| 29 | 9137 |
| 30 | 9173 |
| 31 | 9371 |