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 | 1 |
| 2 | 15 |
| 3 | 91 |
| 4 | 325 |
| 5 | 861 |
| 6 | 1891 |
| 7 | 3655 |
| 8 | 6441 |
| 9 | 10585 |
| 10 | 16471 |
| 11 | 24531 |
| 12 | 35245 |
| 13 | 49141 |
| 14 | 66795 |
| 15 | 88831 |
| 16 | 115921 |
| 17 | 148785 |
| 18 | 188191 |
| 19 | 234955 |
| 20 | 289941 |
| 21 | 354061 |
| 22 | 428275 |
| 23 | 513591 |
| 24 | 611065 |
| 25 | 721801 |
| 26 | 846951 |
| 27 | 987715 |
| 28 | 1145341 |
| 29 | 1321125 |
| 30 | 1516411 |
| 31 | 1732591 |
| 32 | 1971105 |
| 33 | 2233441 |
| 34 | 2521135 |
| 35 | 2835771 |
| 36 | 3178981 |
| 37 | 3552445 |
| 38 | 3957891 |
| 39 | 4397095 |
| 40 | 4871881 |