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 | 8 |
| 2 | 7 |
| 3 | 19 |
| 4 | 50 |
| 5 | 146 |
| 6 | 404 |
| 7 | 1074 |
| 8 | 2990 |
| 9 | 8316 |
| 10 | 22660 |
| 11 | 62314 |
| 12 | 172244 |
| 13 | 473150 |
| 14 | 1300260 |
| 15 | 3582364 |
| 16 | 9857308 |
| 17 | 27108012 |
| 18 | 74607826 |
| 19 | 205320218 |
| 20 | 564864078 |
| 21 | 1554286696 |
| 22 | 4277060278 |
| 23 | 11768341874 |
| 24 | 32381151240 |
| 25 | 89101629960 |
| 26 | 245170898378 |