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 | 5 |
| 2 | 7 |
| 3 | 11 |
| 4 | 13 |
| 5 | 17 |
| 6 | 19 |
| 7 | 23 |
| 8 | 31 |
| 9 | 41 |
| 10 | 53 |
| 11 | 71 |
| 12 | 103 |
| 13 | 167 |
| 14 | 431 |
| 15 | 563 |
| 16 | 673 |
| 17 | 727 |
| 18 | 829 |
| 19 | 1801 |
| 20 | 2699 |
| 21 | 4481 |
| 22 | 6121 |
| 23 | 7283 |
| 24 | 9413 |
| 25 | 10321 |
| 26 | 12491 |
| 27 | 17807 |
| 28 | 30307 |
| 29 | 31891 |
| 30 | 71917 |
| 31 | 172517 |