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) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 63 |
| 3 | 224 |
| 4 | 630 |
| 5 | 1512 |
| 6 | 3234 |
| 7 | 6336 |
| 8 | 11583 |
| 9 | 20020 |
| 10 | 33033 |
| 11 | 52416 |
| 12 | 80444 |
| 13 | 119952 |
| 14 | 174420 |
| 15 | 248064 |
| 16 | 345933 |
| 17 | 474012 |
| 18 | 639331 |
| 19 | 850080 |
| 20 | 1115730 |
| 21 | 1447160 |
| 22 | 1856790 |
| 23 | 2358720 |
| 24 | 2968875 |
| 25 | 3705156 |
| 26 | 4587597 |
| 27 | 5638528 |
| 28 | 6882744 |
| 29 | 8347680 |
| 30 | 10063592 |
| 31 | 12063744 |
| 32 | 14384601 |
| 33 | 17066028 |