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 | 0 |
| 1 | 2 |
| 2 | 3 |
| 3 | 11 |
| 4 | 54 |
| 5 | 74 |
| 6 | 88 |
| 7 | 183 |
| 8 | 20334 |
| 9 | 30938 |
| 10 | 21247 |
| 11 | 90575 |
| 12 | 3913 |
| 13 | 124845 |
| 14 | 2643790 |
| 15 | 5828721 |
| 16 | 2469947 |
| 17 | 4005550 |
| 18 | 19917707 |