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 | 0 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 48 |
| 7 | 64 |
| 8 | 128 |
| 9 | 320 |
| 10 | 704 |
| 11 | 1536 |
| 12 | 3328 |
| 13 | 5632 |
| 14 | 9728 |
| 15 | 20480 |
| 16 | 44032 |
| 17 | 94208 |
| 18 | 180224 |
| 19 | 348160 |
| 20 | 720896 |
| 21 | 1458176 |
| 22 | 2801664 |
| 23 | 6062080 |
| 24 | 12582912 |
| 25 | 23986176 |
| 26 | 49807360 |
| 27 | 103809024 |
| 28 | 202899456 |
| 29 | 415760384 |
| 30 | 853540864 |
| 31 | 1663041536 |
| 32 | 3332374528 |
| 33 | 6752829440 |
| 34 | 13153337344 |
| 35 | 26055016448 |