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 | 3 |
| 2 | 2 |
| 3 | 47 |
| 4 | 1171 |
| 5 | 241 |
| 6 | 5101 |
| 7 | 927001 |
| 8 | 94415941 |
| 9 | 662592253 |
| 10 | 310005271 |
| 11 | 148073185207 |
| 12 | 52913532613 |
| 13 | 3074003451811 |