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 | 105 |
| 2 | 1689 |
| 3 | 12139 |
| 4 | 57379 |
| 5 | 208054 |
| 6 | 626934 |
| 7 | 1646778 |
| 8 | 3889578 |
| 9 | 8439783 |
| 10 | 17085783 |
| 11 | 32645613 |
| 12 | 59394517 |
| 13 | 103613692 |
| 14 | 174281212 |
| 15 | 283927812 |
| 16 | 449681892 |
| 17 | 694529781 |
| 18 | 1048818981 |
| 19 | 1552033791 |
| 20 | 2254874391 |
| 21 | 3221672146 |
| 22 | 4533175570 |
| 23 | 6289743070 |