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 | 8 |
| 2 | 41 |
| 3 | 174 |
| 4 | 805 |
| 5 | 3331 |
| 6 | 14080 |
| 7 | 57287 |
| 8 | 232449 |
| 9 | 928886 |
| 10 | 3688159 |
| 11 | 14524152 |
| 12 | 56872865 |
| 13 | 221485093 |
| 14 | 858684462 |
| 15 | 3315594029 |
| 16 | 12757162785 |
| 17 | 48929395140 |
| 18 | 187135343189 |
| 19 | 713890088738 |
| 20 | 2717075148077 |
| 21 | 10319450344743 |
| 22 | 39117842242220 |