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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 11 |
| 5 | 19 |
| 6 | 56 |
| 7 | 96 |
| 8 | 296 |
| 9 | 554 |
| 10 | 1593 |
| 11 | 3094 |
| 12 | 10723 |
| 13 | 20832 |
| 14 | 75154 |
| 15 | 159129 |
| 16 | 686165 |
| 17 | 1466358 |
| 18 | 7274651 |