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 | 2 |
| 2 | 6 |
| 3 | 12 |
| 4 | 30 |
| 5 | 56 |
| 6 | 84 |
| 7 | 168 |
| 8 | 270 |
| 9 | 280 |
| 10 | 540 |
| 11 | 616 |
| 12 | 840 |
| 13 | 992 |
| 14 | 1092 |
| 15 | 1344 |
| 16 | 2856 |
| 17 | 2976 |
| 18 | 3276 |
| 19 | 3780 |
| 20 | 4590 |
| 21 | 5320 |
| 22 | 5940 |
| 23 | 7560 |
| 24 | 12400 |
| 25 | 12420 |
| 26 | 14880 |
| 27 | 16256 |
| 28 | 16380 |
| 29 | 18848 |
| 30 | 24360 |
| 31 | 26784 |
| 32 | 36036 |
| 33 | 37200 |
| 34 | 37240 |
| 35 | 41664 |
| 36 | 48768 |
| 37 | 49140 |
| 38 | 55692 |
| 39 | 60480 |
| 40 | 65520 |
| 41 | 86304 |
| 42 | 86800 |
| 43 | 111720 |
| 44 | 128520 |