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 | 721801 |
| 2 | 873181 |
| 3 | 4504501 |
| 4 | 8646121 |
| 5 | 9006401 |
| 6 | 9863461 |
| 7 | 10403641 |
| 8 | 12322133 |
| 9 | 14609401 |
| 10 | 15913261 |
| 11 | 18595801 |
| 12 | 18736381 |
| 13 | 20234341 |
| 14 | 21397381 |
| 15 | 22066201 |
| 16 | 22369621 |
| 17 | 22885129 |
| 18 | 25326001 |
| 19 | 25696133 |
| 20 | 28312921 |
| 21 | 36307981 |
| 22 | 42702661 |