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 | 0 |
| 2 | 1 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 17 |
| 7 | 35 |
| 8 | 71 |
| 9 | 88 |
| 10 | 1556 |
| 11 | 3727 |
| 12 | 4729 |
| 13 | 27641 |
| 14 | 60321 |
| 15 | 90719 |
| 16 | 104377 |
| 17 | 107182 |
| 18 | 241452 |
| 19 | 453795 |
| 20 | 679113 |
| 21 | 901261 |
| 22 | 934242 |
| 23 | 1298091 |
| 24 | 5996126 |
| 25 | 7360331 |
| 26 | 76543030 |
| 27 | 299039549 |
| 28 | 382621529 |