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 | 12 |
| 4 | 4 |
| 5 | 54 |
| 6 | 271 |
| 7 | 5 |
| 8 | 160 |
| 9 | 7722 |
| 10 | 24950 |
| 11 | 6 |
| 12 | 375 |
| 13 | 85639 |
| 14 | 9318805 |
| 15 | 9800058 |
| 16 | 7 |
| 17 | 756 |
| 18 | 564041 |
| 19 | 641631566 |
| 20 | 98721672541 |
| 21 | 16942485560 |
| 22 | 8 |
| 23 | 1372 |
| 24 | 2663506 |
| 25 | 17609835599 |
| 26 | 69768979161580 |
| 27 | 9463992096711104 |
| 28 | 131898088386405 |
| 29 | 9 |
| 30 | 2304 |
| 31 | 9976732 |