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 | 236 |
| 2 | 7596 |
| 3 | 93308 |
| 4 | 663395 |
| 5 | 3319500 |
| 6 | 13006484 |
| 7 | 42564898 |
| 8 | 121330981 |
| 9 | 310054250 |
| 10 | 725133024 |
| 11 | 1576001362 |
| 12 | 3220436895 |
| 13 | 6243597894 |
| 14 | 11567739640 |
| 15 | 20600804748 |
| 16 | 35433429545 |
| 17 | 59095358912 |
| 18 | 95883815172 |
| 19 | 151778022640 |
| 20 | 234955848347 |