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 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 17 |
| 6 | 19 |
| 7 | 43 |
| 8 | 101 |
| 9 | 163 |
| 10 | 257 |
| 11 | 487 |
| 12 | 1459 |
| 13 | 14407 |
| 14 | 26407 |
| 15 | 39367 |
| 16 | 62501 |
| 17 | 65537 |
| 18 | 77659 |
| 19 | 1020101 |
| 20 | 1336337 |
| 21 | 86093443 |
| 22 | 242121643 |
| 23 | 258280327 |
| 24 | 3103616899 |
| 25 | 4528177054183 |
| 26 | 15258789062501 |
| 27 | 411782264189299 |
| 28 | 21108889701347407 |
| 29 | 953735353027359375062501 |