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 | 23 |
| 2 | 47 |
| 3 | 14759 |
| 4 | 49727 |
| 5 | 124799 |
| 6 | 304751 |
| 7 | 497261 |
| 8 | 609503 |
| 9 | 1828507 |
| 10 | 2685259 |
| 11 | 10741037 |
| 12 | 12872687 |
| 13 | 13877879 |
| 14 | 23462213 |
| 15 | 23652649 |
| 16 | 27755759 |
| 17 | 29134267 |
| 18 | 31908959 |
| 19 | 53753807 |
| 20 | 65205263 |
| 21 | 132771091 |
| 22 | 218148653 |
| 23 | 341965703 |
| 24 | 551361983 |
| 25 | 734951759 |