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 | 101 |
| 2 | 16091 |
| 3 | 1160911 |
| 4 | 1180811 |
| 5 | 1190611 |
| 6 | 1690691 |
| 7 | 1880881 |
| 8 | 1960961 |
| 9 | 1990661 |
| 10 | 6110119 |
| 11 | 6610199 |
| 12 | 6860989 |
| 13 | 166906991 |
| 14 | 168101891 |
| 15 | 169609691 |
| 16 | 188906881 |
| 17 | 189808681 |
| 18 | 196906961 |
| 19 | 199609661 |
| 20 | 616906919 |
| 21 | 661609199 |
| 22 | 666101999 |
| 23 | 668609899 |