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 | 5 |
| 2 | 51 |
| 3 | 50 |
| 4 | 54 |
| 5 | 500 |
| 6 | 504 |
| 7 | 5000 |
| 8 | 576 |
| 9 | 512 |
| 10 | 5184 |
| 11 | 5120 |
| 12 | 50176 |
| 13 | 51200 |
| 14 | 55296 |
| 15 | 507904 |
| 16 | 516096 |
| 17 | 5038848 |
| 18 | 589824 |
| 19 | 524288 |
| 20 | 5308416 |
| 21 | 5242880 |
| 22 | 51380224 |
| 23 | 52428800 |
| 24 | 56623104 |
| 25 | 50331648 |
| 26 | 509607936 |
| 27 | 503316480 |
| 28 | 5096079360 |
| 29 | 536870912 |
| 30 | 5435817984 |