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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 6 |
| 6 | 12 |
| 7 | 24 |
| 8 | 47 |
| 9 | 94 |
| 10 | 188 |
| 11 | 376 |
| 12 | 752 |
| 13 | 1504 |
| 14 | 3008 |
| 15 | 6016 |
| 16 | 12030 |
| 17 | 24060 |
| 18 | 48120 |
| 19 | 96240 |
| 20 | 192480 |
| 21 | 384960 |
| 22 | 769920 |
| 23 | 1539840 |
| 24 | 3079680 |
| 25 | 6159360 |
| 26 | 12318720 |
| 27 | 24637440 |
| 28 | 49274880 |
| 29 | 98549760 |
| 30 | 197099520 |
| 31 | 394199040 |
| 32 | 788398077 |