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 | 1280 |
| 2 | 1600 |
| 3 | 4800 |
| 4 | 28672 |
| 5 | 131072 |
| 6 | 688128 |
| 7 | 6881280 |
| 8 | 7864320 |
| 9 | 39321600 |
| 10 | 43253760 |
| 11 | 94371840 |
| 12 | 201326592 |
| 13 | 528482304 |
| 14 | 9663676416 |
| 15 | 115964116992 |
| 16 | 241591910400 |
| 17 | 265751101440 |
| 18 | 347892350976 |
| 19 | 811748818944 |
| 20 | 3522410053632 |
| 21 | 4174708211712 |
| 22 | 21646635171840 |
| 23 | 23811298689024 |
| 24 | 27058293964800 |