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 | 5179 |
| 2 | 16402489 |
| 3 | 467943401 |
| 4 | 504990767 |
| 5 | 749554891 |
| 6 | 857435473 |
| 7 | 2430292801 |
| 8 | 4486052479 |
| 9 | 6659865647 |
| 10 | 7064402473 |
| 11 | 7487094779 |
| 12 | 13947137563 |
| 13 | 21257639981 |
| 14 | 30293402479 |
| 15 | 79101562453 |
| 16 | 155450409973 |
| 17 | 169935221837 |
| 18 | 440301256699 |
| 19 | 1010752751027 |
| 20 | 1086948034603 |