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 | 4 |
| 2 | 8 |
| 3 | 20 |
| 4 | 44 |
| 5 | 84 |
| 6 | 140 |
| 7 | 224 |
| 8 | 332 |
| 9 | 472 |
| 10 | 648 |
| 11 | 864 |
| 12 | 1120 |
| 13 | 1428 |
| 14 | 1784 |
| 15 | 2196 |
| 16 | 2668 |
| 17 | 3204 |
| 18 | 3804 |
| 19 | 4480 |
| 20 | 5228 |
| 21 | 6056 |
| 22 | 6968 |
| 23 | 7968 |
| 24 | 9056 |
| 25 | 10244 |
| 26 | 11528 |
| 27 | 12916 |
| 28 | 14412 |
| 29 | 16020 |
| 30 | 17740 |
| 31 | 19584 |
| 32 | 21548 |
| 33 | 23640 |
| 34 | 25864 |
| 35 | 28224 |
| 36 | 30720 |
| 37 | 33364 |
| 38 | 36152 |
| 39 | 39092 |
| 40 | 42188 |
| 41 | 45444 |
| 42 | 48860 |
| 43 | 52448 |
| 44 | 56204 |