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 | 81 |
| 3 | 468 |
| 4 | 1911 |
| 5 | 6237 |
| 6 | 11781 |
| 7 | 21021 |
| 8 | 51051 |
| 9 | 81081 |
| 10 | 121737 |
| 11 | 261261 |
| 12 | 318087 |
| 13 | 513513 |
| 14 | 671517 |
| 15 | 1145529 |
| 16 | 1072071 |
| 17 | 1582581 |
| 18 | 1378377 |
| 19 | 3216213 |
| 20 | 2513511 |
| 21 | 4135131 |
| 22 | 4700619 |
| 23 | 5666661 |
| 24 | 11792781 |
| 25 | 8729721 |
| 26 | 11810799 |
| 27 | 15444891 |
| 28 | 19270251 |
| 29 | 15162147 |
| 30 | 24657633 |
| 31 | 28945917 |
| 32 | 26189163 |