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 | 11 |
| 2 | 20 |
| 3 | 61 |
| 4 | 151 |
| 5 | 332 |
| 6 | 673 |
| 7 | 1472 |
| 8 | 2850 |
| 9 | 5960 |
| 10 | 11866 |
| 11 | 24459 |
| 12 | 49794 |
| 13 | 103082 |