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 | 35 |
| 2 | 1225 |
| 3 | 24199 |
| 4 | 315124 |
| 5 | 3017129 |
| 6 | 22852913 |
| 7 | 144081276 |
| 8 | 784071455 |
| 9 | 3781718633 |
| 10 | 16487698435 |
| 11 | 65952999251 |
| 12 | 244841613810 |
| 13 | 851144356707 |
| 14 | 2790551617469 |
| 15 | 8678912669190 |
| 16 | 25728520577688 |
| 17 | 72995578880032 |
| 18 | 198891717017532 |