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) |
|---|---|
| 11 | 3 |
| 12 | 10 |
| 13 | 29 |
| 14 | 65 |
| 15 | 135 |
| 16 | 252 |
| 17 | 445 |
| 18 | 739 |
| 19 | 1184 |
| 20 | 1821 |
| 21 | 2726 |
| 22 | 3963 |
| 23 | 5643 |
| 24 | 7861 |
| 25 | 10770 |
| 26 | 14504 |
| 27 | 19269 |
| 28 | 25248 |
| 29 | 32710 |
| 30 | 41896 |
| 31 | 53152 |
| 32 | 66788 |
| 33 | 83238 |
| 34 | 102895 |
| 35 | 126295 |
| 36 | 153927 |
| 37 | 186443 |
| 38 | 224442 |
| 39 | 268710 |
| 40 | 319971 |
| 41 | 379160 |
| 42 | 447142 |
| 43 | 525021 |
| 44 | 613821 |
| 45 | 714831 |