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 | 23 |
| 2 | 359 |
| 3 | 4747 |
| 4 | 57351 |
| 5 | 655683 |
| 6 | 7229839 |
| 7 | 77760587 |
| 8 | 821694071 |
| 9 | 8571599443 |
| 10 | 88563029919 |
| 11 | 908455411227 |
| 12 | 9267399149191 |
| 13 | 94137972490403 |
| 14 | 953097676407599 |
| 15 | 9624750893682667 |
| 16 | 96997854561570711 |
| 17 | 975982073553112563 |