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 | 2 |
| 1 | 6 |
| 2 | 20 |
| 3 | 60 |
| 4 | 124 |
| 5 | 252 |
| 6 | 388 |
| 7 | 652 |
| 8 | 924 |
| 9 | 1332 |
| 10 | 1748 |
| 11 | 2428 |
| 12 | 2988 |
| 13 | 3948 |
| 14 | 4788 |
| 15 | 5908 |
| 16 | 7028 |
| 17 | 8692 |
| 18 | 9964 |
| 19 | 12052 |
| 20 | 13748 |
| 21 | 16004 |
| 22 | 18124 |
| 23 | 21204 |
| 24 | 23476 |
| 25 | 26996 |
| 26 | 29972 |
| 27 | 33788 |
| 28 | 37196 |
| 29 | 42124 |
| 30 | 45548 |
| 31 | 51188 |
| 32 | 55732 |
| 33 | 61412 |
| 34 | 66532 |
| 35 | 73348 |
| 36 | 78484 |
| 37 | 86548 |
| 38 | 92956 |
| 39 | 100924 |
| 40 | 107772 |
| 41 | 117692 |
| 42 | 124556 |
| 43 | 135476 |
| 44 | 144036 |