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 | 3 |
| 2 | 6 |
| 3 | 15 |
| 4 | 24 |
| 5 | 60 |
| 6 | 102 |
| 7 | 255 |
| 8 | 384 |
| 9 | 960 |
| 10 | 1632 |
| 11 | 4080 |
| 12 | 6168 |
| 13 | 15420 |
| 14 | 26214 |
| 15 | 65535 |
| 16 | 98304 |
| 17 | 245760 |
| 18 | 417792 |
| 19 | 1044480 |
| 20 | 1579008 |
| 21 | 3947520 |
| 22 | 6710784 |
| 23 | 16776960 |
| 24 | 25166208 |
| 25 | 62915520 |
| 26 | 106956384 |
| 27 | 267390960 |
| 28 | 404232216 |
| 29 | 1010580540 |
| 30 | 1717986918 |
| 31 | 4294967295 |
| 32 | 6442450944 |