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 | 0 |
| 2 | 3 |
| 3 | 12 |
| 4 | 17 |
| 5 | 34 |
| 6 | 68 |
| 7 | 136 |
| 8 | 768 |
| 9 | 1025 |
| 10 | 18 |
| 11 | 2080 |
| 12 | 12288 |
| 13 | 16388 |
| 14 | 72 |
| 15 | 32896 |
| 16 | 196608 |
| 17 | 262400 |
| 18 | 524800 |
| 19 | 1048577 |
| 20 | 2098176 |
| 21 | 4194306 |
| 22 | 48 |
| 23 | 8390656 |
| 24 | 50331648 |
| 25 | 67112960 |
| 26 | 134225920 |
| 27 | 268435460 |
| 28 | 536887296 |
| 29 | 1073741832 |
| 30 | 192 |
| 31 | 2147516416 |
| 32 | 12884901888 |
| 33 | 17179934720 |
| 34 | 34359869440 |