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 | 1 |
| 2 | 23 |
| 3 | 386 |
| 4 | 5831 |
| 5 | 82456 |
| 6 | 1206503 |
| 7 | 15355671 |
| 8 | 202838110 |
| 9 | 2484401020 |
| 10 | 31322180131 |
| 11 | 3835578242783 |
| 12 | 525732558043736 |
| 13 | 70648887825106821 |
| 14 | 10365384555277543376 |
| 15 | 1340704717754261643863 |
| 16 | 173544168713353406577421 |