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 | 12 |
| 2 | 207 |
| 3 | 2577 |
| 4 | 35476 |
| 5 | 484808 |
| 6 | 6623719 |
| 7 | 90535227 |
| 8 | 1237278512 |
| 9 | 16909630099 |
| 10 | 231098841942 |
| 11 | 3158359335337 |
| 12 | 43164380571143 |
| 13 | 589914903106589 |
| 14 | 8062194454707849 |
| 15 | 110183650123040906 |
| 16 | 1505847685192695964 |