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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 4 |
| 4 | 75 |
| 5 | 79 |
| 6 | 233 |
| 7 | 312 |
| 8 | 5849 |
| 9 | 6161 |
| 10 | 18171 |
| 11 | 24332 |
| 12 | 456147 |
| 13 | 480479 |
| 14 | 1417105 |
| 15 | 1897584 |
| 16 | 35573617 |
| 17 | 37471201 |
| 18 | 110516019 |
| 19 | 147987220 |
| 20 | 2774285979 |
| 21 | 2922273199 |
| 22 | 8618832377 |
| 23 | 11541105576 |
| 24 | 216358732745 |
| 25 | 227899838321 |
| 26 | 672158409387 |
| 27 | 900058247708 |
| 28 | 16873206868131 |
| 29 | 17773265115839 |