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 | 0 |
| 2 | 2 |
| 3 | 5 |
| 4 | 6 |
| 5 | 11 |
| 6 | 20 |
| 7 | 32 |
| 8 | 59 |
| 9 | 81 |
| 10 | 98 |
| 11 | 128 |
| 12 | 437 |
| 13 | 758 |
| 14 | 989 |
| 15 | 998 |
| 16 | 1403 |
| 17 | 1548 |
| 18 | 1907 |
| 19 | 1914 |
| 20 | 2219 |
| 21 | 5414 |
| 22 | 9047 |
| 23 | 13196 |
| 24 | 18518 |
| 25 | 28382 |