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 | 11 |
| 2 | 121 |
| 3 | 876 |
| 4 | 4466 |
| 5 | 17594 |
| 6 | 57238 |
| 7 | 160883 |
| 8 | 403159 |
| 9 | 921181 |
| 10 | 1951247 |
| 11 | 3879910 |
| 12 | 7312800 |
| 13 | 13164932 |
| 14 | 22776596 |
| 15 | 38059285 |
| 16 | 61676477 |
| 17 | 97264447 |
| 18 | 149698645 |
| 19 | 225411536 |
| 20 | 332768158 |
| 21 | 482506014 |
| 22 | 688246274 |
| 23 | 967083623 |
| 24 | 1340262451 |
| 25 | 1833947441 |