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) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 16 |
| 3 | 32 |
| 4 | 56 |
| 5 | 92 |
| 6 | 148 |
| 7 | 240 |
| 8 | 400 |
| 9 | 692 |
| 10 | 1244 |
| 11 | 2312 |
| 12 | 4408 |
| 13 | 8556 |
| 14 | 16804 |
| 15 | 33248 |
| 16 | 66080 |
| 17 | 131684 |
| 18 | 262828 |
| 19 | 525048 |
| 20 | 1049416 |
| 21 | 2098076 |
| 22 | 4195316 |
| 23 | 8389712 |
| 24 | 16778416 |
| 25 | 33555732 |
| 26 | 67110268 |
| 27 | 134219240 |
| 28 | 268437080 |
| 29 | 536872652 |
| 30 | 1073743684 |
| 31 | 2147485632 |
| 32 | 4294969408 |
| 33 | 8589936836 |