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 | 20 |
| 3 | 48 |
| 4 | 104 |
| 5 | 172 |
| 6 | 292 |
| 7 | 424 |
| 8 | 616 |
| 9 | 844 |
| 10 | 1140 |
| 11 | 1448 |
| 12 | 1888 |
| 13 | 2340 |
| 14 | 2876 |
| 15 | 3488 |
| 16 | 4224 |
| 17 | 4972 |
| 18 | 5892 |
| 19 | 6824 |
| 20 | 7936 |
| 21 | 9140 |
| 22 | 10460 |
| 23 | 11792 |
| 24 | 13416 |
| 25 | 15092 |
| 26 | 16900 |
| 27 | 18816 |
| 28 | 20960 |
| 29 | 23116 |
| 30 | 25612 |
| 31 | 28120 |
| 32 | 30880 |
| 33 | 33764 |
| 34 | 36812 |
| 35 | 39968 |
| 36 | 43568 |
| 37 | 47180 |
| 38 | 50972 |
| 39 | 54904 |
| 40 | 59240 |
| 41 | 63588 |
| 42 | 68372 |
| 43 | 73168 |
| 44 | 78288 |
| 45 | 83676 |
| 46 | 89276 |
| 47 | 94888 |
| 48 | 101112 |