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 | 0 |
| 4 | 4 |
| 5 | 2 |
| 6 | 8 |
| 7 | 4 |
| 8 | 14 |
| 9 | 12 |
| 10 | 26 |
| 11 | 22 |
| 12 | 44 |
| 13 | 44 |
| 14 | 76 |
| 15 | 78 |
| 16 | 126 |
| 17 | 138 |
| 18 | 206 |
| 19 | 228 |
| 20 | 330 |
| 21 | 378 |
| 22 | 524 |
| 23 | 602 |
| 24 | 814 |
| 25 | 950 |
| 26 | 1252 |
| 27 | 1466 |
| 28 | 1900 |
| 29 | 2238 |
| 30 | 2854 |
| 31 | 3362 |
| 32 | 4236 |
| 33 | 5006 |
| 34 | 6232 |
| 35 | 7356 |
| 36 | 9078 |
| 37 | 10720 |
| 38 | 13118 |
| 39 | 15470 |
| 40 | 18800 |
| 41 | 22152 |
| 42 | 26744 |
| 43 | 31456 |
| 44 | 37772 |
| 45 | 44368 |
| 46 | 53002 |
| 47 | 62134 |
| 48 | 73894 |