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 | 23 |
| 5 | 53 |
| 6 | 137 |
| 7 | 480881 |
| 8 | 480941 |
| 9 | 480989 |
| 10 | 481001 |
| 11 | 481469 |
| 12 | 3524099 |
| 13 | 3524113 |
| 14 | 3524281 |
| 15 | 3524309 |
| 16 | 70117933 |
| 17 | 189961799 |
| 18 | 189961907 |
| 19 | 189961997 |
| 20 | 189962177 |
| 21 | 189962609 |
| 22 | 189963941 |
| 23 | 189963959 |
| 24 | 189968729 |
| 25 | 514274867 |
| 26 | 514282961 |
| 27 | 3779851157 |
| 28 | 10246935913 |
| 29 | 10246936309 |
| 30 | 10246936463 |