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 | 6 |
| 2 | 9 |
| 3 | 14 |
| 4 | 21 |
| 5 | 33 |
| 6 | 106 |
| 7 | 611 |
| 8 | 1437 |
| 9 | 2701 |
| 10 | 6583 |
| 11 | 16078 |
| 12 | 17993 |
| 13 | 32807 |
| 14 | 35135 |
| 15 | 36019 |
| 16 | 340941 |
| 17 | 1069595 |
| 18 | 1589717 |
| 19 | 3586913 |
| 20 | 5835265 |
| 21 | 139139963 |
| 22 | 251306399 |
| 23 | 285074774 |
| 24 | 327023293 |
| 25 | 751412039 |
| 26 | 981270997 |
| 27 | 2655397729 |
| 28 | 5238281053 |
| 29 | 6498130471 |
| 30 | 8512915685 |
| 31 | 16328958739 |