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 | 6 |
| 3 | 13 |
| 4 | 15 |
| 5 | 31 |
| 6 | 32 |
| 7 | 34 |
| 8 | 75 |
| 9 | 77 |
| 10 | 445 |
| 11 | 2701 |
| 12 | 15929 |
| 13 | 40079 |
| 14 | 40156 |
| 15 | 251720 |
| 16 | 251766 |
| 17 | 251769 |
| 18 | 251787 |
| 19 | 10553437 |
| 20 | 10553577 |
| 21 | 10553645 |
| 22 | 10553815 |
| 23 | 179992919 |
| 24 | 179993161 |
| 25 | 179993169 |
| 26 | 3140421756 |
| 27 | 3140421774 |
| 28 | 3140421782 |
| 29 | 55762149085 |
| 30 | 55762149089 |
| 31 | 55762149101 |