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) |
|---|---|
| 7 | 6 |
| 8 | 67 |
| 9 | 412 |
| 10 | 1926 |
| 11 | 7856 |
| 12 | 29057 |
| 13 | 101105 |
| 14 | 335081 |
| 15 | 1072653 |
| 16 | 3337131 |
| 17 | 10154700 |
| 18 | 30330869 |
| 19 | 89226443 |
| 20 | 259092076 |
| 21 | 744095757 |
| 22 | 2116643127 |
| 23 | 5971171140 |
| 24 | 16722250081 |
| 25 | 46529076097 |
| 26 | 128722040503 |
| 27 | 354276958783 |
| 28 | 970546150818 |