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 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 6 |
| 5 | 10 |
| 6 | 35 |
| 7 | 47 |
| 8 | 147 |
| 9 | 216 |
| 10 | 452 |
| 11 | 512 |
| 12 | 3055 |
| 13 | 3365 |
| 14 | 5602 |
| 15 | 12160 |
| 16 | 35951 |
| 17 | 37959 |
| 18 | 147889 |
| 19 | 154998 |
| 20 | 703094 |
| 21 | 1178850 |
| 22 | 1467813 |