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 | 50 |
| 2 | 51 |
| 3 | 125 |
| 4 | 15405 |
| 5 | 26205 |
| 6 | 226700 |
| 7 | 226701 |
| 8 | 226710 |
| 9 | 226711 |
| 10 | 513090 |
| 11 | 513091 |
| 12 | 1351832 |
| 13 | 8210065 |