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) |
|---|---|
| 3 | 14 |
| 4 | 28 |
| 5 | 52 |
| 6 | 94 |
| 7 | 170 |
| 8 | 312 |
| 9 | 584 |
| 10 | 1114 |
| 11 | 2158 |
| 12 | 4228 |
| 13 | 8348 |
| 14 | 16566 |
| 15 | 32978 |
| 16 | 65776 |
| 17 | 131344 |
| 18 | 262450 |
| 19 | 524630 |
| 20 | 1048956 |
| 21 | 2097572 |
| 22 | 4194766 |
| 23 | 8389114 |
| 24 | 16777768 |
| 25 | 33555032 |
| 26 | 67109514 |
| 27 | 134218430 |
| 28 | 268436212 |
| 29 | 536871724 |
| 30 | 1073742694 |
| 31 | 2147484578 |
| 32 | 4294968288 |
| 33 | 8589935648 |
| 34 | 17179870306 |