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 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 12 |
| 5 | 24 |
| 6 | 48 |
| 7 | 112 |
| 8 | 224 |
| 9 | 448 |
| 10 | 960 |
| 11 | 1920 |
| 12 | 3840 |
| 13 | 7936 |
| 14 | 15872 |
| 15 | 31744 |
| 16 | 64512 |
| 17 | 129024 |
| 18 | 258048 |
| 19 | 520192 |
| 20 | 1040384 |
| 21 | 2080768 |
| 22 | 4177920 |
| 23 | 8355840 |
| 24 | 16711680 |
| 25 | 33488896 |
| 26 | 66977792 |
| 27 | 133955584 |
| 28 | 268173312 |
| 29 | 536346624 |
| 30 | 1072693248 |
| 31 | 2146435072 |
| 32 | 4292870144 |
| 33 | 8585740288 |
| 34 | 17175674880 |
| 35 | 34351349760 |
| 36 | 68702699520 |