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) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 46 |
| 3 | 186 |
| 4 | 706 |
| 5 | 2568 |
| 6 | 9004 |
| 7 | 30894 |
| 8 | 103832 |
| 9 | 343006 |
| 10 | 1123770 |
| 11 | 3623234 |
| 12 | 11630150 |