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 | 7 |
| 2 | 37 |
| 3 | 237 |
| 4 | 1789 |
| 5 | 4357 |
| 6 | 14379 |
| 7 | 19587 |
| 8 | 93957 |
| 9 | 189572 |
| 10 | 189597 |
| 11 | 1234397 |
| 12 | 1839597 |
| 13 | 1958798 |
| 14 | 1983957 |
| 15 | 3978594 |
| 16 | 11983957 |
| 17 | 19596487 |
| 18 | 29195397 |
| 19 | 39599197 |
| 20 | 195991487 |
| 21 | 339799143 |
| 22 | 395991697 |
| 23 | 1429199397 |
| 24 | 1679895983 |
| 25 | 1983994799 |
| 26 | 2239951987 |
| 27 | 11959939917 |
| 28 | 15991995897 |