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 | 11 |
| 3 | 19 |
| 4 | 29 |
| 5 | 59 |
| 6 | 349 |
| 7 | 521 |
| 8 | 2071 |
| 9 | 66949 |
| 10 | 223231 |
| 11 | 3660191 |
| 12 | 4552181 |
| 13 | 5500081 |
| 14 | 10161979 |
| 15 | 12235619 |
| 16 | 47859629 |