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 | 79 |
| 3 | 1315 |
| 4 | 22063 |
| 5 | 377676 |
| 6 | 6430408 |
| 7 | 109609484 |
| 8 | 1868028342 |
| 9 | 31836538191 |
| 10 | 542586883485 |
| 11 | 9247235554661 |
| 12 | 157599508115116 |
| 13 | 2685948646284826 |
| 14 | 45776288238345925 |
| 15 | 780159569752010830 |
| 16 | 13296162250888648968 |