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 | 60 |
| 2 | 792 |
| 3 | 4724 |
| 4 | 18096 |
| 5 | 52716 |
| 6 | 127816 |
| 7 | 271908 |
| 8 | 524640 |
| 9 | 938652 |
| 10 | 1581432 |
| 11 | 2537172 |
| 12 | 3908624 |
| 13 | 5818956 |
| 14 | 8413608 |
| 15 | 11862148 |
| 16 | 16360128 |
| 17 | 22130940 |
| 18 | 29427672 |
| 19 | 38534964 |
| 20 | 49770864 |
| 21 | 63488684 |
| 22 | 80078856 |