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 | 37 |
| 3 | 557 |
| 4 | 647 |
| 5 | 9803 |
| 6 | 192583 |
| 7 | 698653 |
| 8 | 150287 |
| 9 | 34449209 |
| 10 | 136017109 |
| 11 | 191058199 |
| 12 | 618408991 |
| 13 | 564779279 |
| 14 | 40434774727 |
| 15 | 52195951979 |
| 16 | 149416079731 |
| 17 | 598718776379 |
| 18 | 802636910771 |