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 | 3 |
| 2 | 10 |
| 3 | 101 |
| 4 | 10202 |
| 5 | 104080805 |
| 6 | 10832813969448026 |
| 7 | 117349858496668297583751115296677 |
| 8 | 13770989289188072635789270799554901596999795308252284177727242330 |