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 | 0 |
| 3 | 2 |
| 4 | 2 |
| 5 | 4 |
| 6 | 4 |
| 7 | 6 |
| 8 | 6 |
| 9 | 8 |
| 10 | 12 |
| 11 | 14 |
| 12 | 18 |
| 13 | 24 |
| 14 | 32 |
| 15 | 38 |
| 16 | 50 |
| 17 | 60 |
| 18 | 76 |
| 19 | 90 |
| 20 | 110 |
| 21 | 134 |
| 22 | 162 |
| 23 | 190 |
| 24 | 228 |
| 25 | 270 |
| 26 | 322 |
| 27 | 380 |
| 28 | 446 |
| 29 | 524 |
| 30 | 616 |
| 31 | 720 |
| 32 | 838 |
| 33 | 980 |
| 34 | 1134 |
| 35 | 1314 |
| 36 | 1526 |
| 37 | 1760 |
| 38 | 2026 |
| 39 | 2336 |
| 40 | 2676 |
| 41 | 3072 |
| 42 | 3518 |
| 43 | 4020 |
| 44 | 4586 |
| 45 | 5232 |
| 46 | 5948 |
| 47 | 6760 |
| 48 | 7676 |
| 49 | 8698 |
| 50 | 9846 |
| 51 | 11142 |
| 52 | 12578 |