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) |
|---|---|
| 1 | 2 |
| 2 | 6 |
| 3 | 32 |
| 4 | 24 |
| 5 | 512 |
| 6 | 96 |
| 7 | 8192 |
| 8 | 120 |
| 9 | 131072 |
| 10 | 1536 |
| 11 | 2097152 |
| 12 | 480 |
| 13 | 33554432 |
| 14 | 24576 |
| 15 | 536870912 |
| 16 | 840 |
| 17 | 8589934592 |
| 18 | 7776 |
| 19 | 137438953472 |
| 20 | 7680 |
| 21 | 2199023255552 |
| 22 | 6291456 |
| 23 | 35184372088832 |
| 24 | 3360 |
| 25 | 562949953421312 |
| 26 | 100663296 |
| 27 | 9007199254740992 |
| 28 | 122880 |
| 29 | 144115188075855872 |
| 30 | 124416 |