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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 12 |
| 5 | 36 |
| 6 | 128 |
| 7 | 460 |
| 8 | 1750 |
| 9 | 6551 |
| 10 | 25108 |
| 11 | 94977 |
| 12 | 363533 |
| 13 | 1378573 |
| 14 | 5273561 |