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 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 8 |
| 5 | 16 |
| 6 | 48 |
| 7 | 96 |
| 8 | 192 |
| 9 | 384 |
| 10 | 768 |
| 11 | 1536 |
| 12 | 5632 |
| 13 | 11264 |
| 14 | 22528 |
| 15 | 77312 |
| 16 | 154624 |
| 17 | 309248 |
| 18 | 922624 |
| 19 | 1845248 |
| 20 | 6848512 |
| 21 | 17096576 |
| 22 | 34193152 |
| 23 | 68386304 |
| 24 | 272849152 |