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 | 0 |
| 1 | 0 |
| 2 | 2 |
| 3 | 2 |
| 4 | 10 |
| 5 | 26 |
| 6 | 58 |
| 7 | 122 |
| 8 | 122 |
| 9 | 122 |
| 10 | 122 |
| 11 | 1146 |
| 12 | 1146 |
| 13 | 5242 |
| 14 | 13434 |
| 15 | 29818 |
| 16 | 29818 |
| 17 | 95354 |
| 18 | 95354 |
| 19 | 95354 |
| 20 | 619642 |
| 21 | 619642 |
| 22 | 619642 |
| 23 | 4813946 |
| 24 | 4813946 |
| 25 | 21591162 |
| 26 | 21591162 |
| 27 | 21591162 |
| 28 | 21591162 |
| 29 | 290026618 |
| 30 | 290026618 |
| 31 | 290026618 |
| 32 | 2437510266 |
| 33 | 6732477562 |
| 34 | 6732477562 |