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 | 1 |
| 2 | 8 |
| 3 | 13 |
| 4 | 26 |
| 5 | 104 |
| 6 | 728 |
| 7 | 364 |
| 8 | 80 |
| 9 | 91 |
| 10 | 8744 |
| 11 | 3851 |
| 12 | 3280 |
| 13 | 59048 |
| 14 | 4782968 |
| 15 | 7174453 |
| 16 | 3438578 |
| 17 | 16139240 |
| 18 | 5373368 |
| 19 | 5235412 |
| 20 | 1678822106 |
| 21 | 86049704 |
| 22 | 387420488 |
| 23 | 47071589413 |
| 24 | 140633637386 |
| 25 | 2952400 |
| 26 | 728 |
| 27 | 757 |
| 28 | 9526168288 |
| 29 | 7312949144072 |
| 30 | 49566102697280 |
| 31 | 24477226494760 |