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 | 5 |
| 4 | 12 |
| 5 | 26 |
| 6 | 52 |
| 7 | 99 |
| 8 | 184 |
| 9 | 340 |
| 10 | 632 |
| 11 | 1189 |
| 12 | 2268 |
| 13 | 4382 |
| 14 | 8556 |
| 15 | 16839 |
| 16 | 33328 |
| 17 | 66216 |
| 18 | 131888 |
| 19 | 263113 |
| 20 | 525428 |
| 21 | 1049906 |
| 22 | 2098692 |
| 23 | 4196075 |
| 24 | 8390632 |
| 25 | 16779516 |
| 26 | 33557032 |
| 27 | 67111789 |
| 28 | 134221004 |
| 29 | 268439110 |
| 30 | 536874972 |
| 31 | 1073746319 |
| 32 | 2147488608 |
| 33 | 4294972752 |
| 34 | 8589940576 |