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 | 2 |
| 3 | 11 |
| 4 | 12 |
| 5 | 21 |
| 6 | 38 |
| 7 | 338 |
| 8 | 1488 |
| 9 | 3338 |
| 10 | 11011 |
| 11 | 20521 |
| 12 | 33338 |
| 13 | 210771 |
| 14 | 333338 |
| 15 | 3333338 |
| 16 | 14636332 |
| 17 | 15570521 |
| 18 | 20279162 |
| 19 | 33333338 |
| 20 | 45947921 |
| 21 | 49136668 |
| 22 | 66641662 |
| 23 | 333333338 |
| 24 | 648940838 |
| 25 | 3333333338 |
| 26 | 6412661079 |
| 27 | 14632642079 |
| 28 | 33333333338 |