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 | 5 |
| 4 | 10 |
| 5 | 29 |
| 6 | 39 |
| 7 | 114 |
| 8 | 484 |
| 9 | 865 |
| 10 | 4180 |
| 11 | 5385 |
| 12 | 13122 |
| 13 | 13832 |
| 14 | 22676 |
| 15 | 25020 |
| 16 | 30057 |
| 17 | 35910 |
| 18 | 37935 |
| 19 | 42295 |
| 20 | 50194 |
| 21 | 110076 |
| 22 | 184124 |
| 23 | 191152 |