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 | 12 |
| 2 | 32 |
| 3 | 80 |
| 4 | 208 |
| 5 | 528 |
| 6 | 1360 |
| 7 | 3472 |
| 8 | 8912 |
| 9 | 22800 |
| 10 | 58448 |
| 11 | 149648 |
| 12 | 383440 |
| 13 | 982032 |
| 14 | 2515792 |
| 15 | 6443920 |
| 16 | 16507088 |
| 17 | 42282768 |
| 18 | 108311120 |
| 19 | 277442192 |
| 20 | 710686672 |
| 21 | 1820455440 |
| 22 | 4663202128 |
| 23 | 11945023888 |
| 24 | 30597832400 |
| 25 | 78377927952 |
| 26 | 200769257552 |