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 | 2 |
| 1 | 6 |
| 2 | 1 |
| 3 | 18 |
| 4 | 3 |
| 5 | 1 |
| 6 | 54 |
| 7 | 7 |
| 8 | 2 |
| 9 | 1 |
| 10 | 162 |
| 11 | 17 |
| 12 | 5 |
| 13 | 2 |
| 14 | 1 |
| 15 | 486 |
| 16 | 41 |
| 17 | 11 |
| 18 | 4 |
| 19 | 2 |
| 20 | 1 |
| 21 | 1458 |
| 22 | 99 |
| 23 | 24 |
| 24 | 9 |
| 25 | 4 |
| 26 | 2 |
| 27 | 1 |
| 28 | 4374 |
| 29 | 239 |
| 30 | 53 |
| 31 | 19 |
| 32 | 8 |
| 33 | 4 |
| 34 | 2 |
| 35 | 1 |
| 36 | 13122 |
| 37 | 577 |
| 38 | 117 |
| 39 | 40 |
| 40 | 17 |
| 41 | 8 |
| 42 | 4 |
| 43 | 2 |
| 44 | 1 |