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 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 16 |
| 5 | 20 |
| 6 | 48 |
| 7 | 84 |
| 8 | 256 |
| 9 | 324 |
| 10 | 800 |
| 11 | 1364 |
| 12 | 3840 |
| 13 | 5460 |
| 14 | 12544 |
| 15 | 19800 |
| 16 | 65536 |
| 17 | 87380 |
| 18 | 186624 |
| 19 | 349524 |
| 20 | 986880 |
| 21 | 1365336 |
| 22 | 3345408 |
| 23 | 5592404 |
| 24 | 16515072 |
| 25 | 20250000 |
| 26 | 52306176 |
| 27 | 84768120 |
| 28 | 252645120 |
| 29 | 351847488 |
| 30 | 760320000 |
| 31 | 1431655764 |
| 32 | 4288266240 |
| 33 | 5632621632 |
| 34 | 13628740608 |