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 | 3 |
| 3 | 5 |
| 4 | 15 |
| 5 | 21 |
| 6 | 38 |
| 7 | 102 |
| 8 | 162 |
| 9 | 239 |
| 10 | 1047 |
| 11 | 1973 |
| 12 | 2558 |
| 13 | 5879 |
| 14 | 14435 |
| 15 | 28337 |
| 16 | 32795 |
| 17 | 38078 |
| 18 | 56778 |
| 19 | 91214 |
| 20 | 111324 |
| 21 | 115862 |
| 22 | 138603 |