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 | 2 |
| 2 | 8 |
| 3 | 12 |
| 4 | 14 |
| 5 | 54 |
| 6 | 158 |
| 7 | 159 |
| 8 | 203 |
| 9 | 2159 |
| 10 | 5999 |
| 11 | 8339 |
| 12 | 143098 |
| 13 | 85679 |
| 14 | 724919 |
| 15 | 2417594 |
| 16 | 7415099 |
| 17 | 44026799 |
| 18 | 183578399 |
| 19 | 446036579 |