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 | 3 |
| 2 | 4 |
| 3 | 8 |
| 4 | 18 |
| 5 | 55 |
| 6 | 137 |
| 7 | 415 |
| 8 | 941 |
| 9 | 2854 |
| 10 | 7743 |
| 11 | 21959 |
| 12 | 61545 |
| 13 | 175817 |
| 14 | 496688 |