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 | 7 |
| 2 | 19 |
| 3 | 98 |
| 4 | 279 |
| 5 | 1206 |
| 6 | 1981 |
| 7 | 4570 |
| 8 | 6347 |
| 9 | 11438 |
| 10 | 23389 |
| 11 | 28460 |
| 12 | 48925 |
| 13 | 66724 |
| 14 | 76763 |
| 15 | 100448 |
| 16 | 144781 |
| 17 | 200466 |
| 18 | 221149 |
| 19 | 293904 |
| 20 | 349911 |
| 21 | 379756 |
| 22 | 482391 |
| 23 | 559620 |
| 24 | 691145 |
| 25 | 897048 |
| 26 | 1012725 |
| 27 | 1073044 |
| 28 | 1203091 |
| 29 | 1270640 |
| 30 | 1415897 |
| 31 | 2018592 |
| 32 | 2215323 |