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 | 0 |
| 1 | 12 |
| 2 | 11 |
| 3 | 36 |
| 4 | 99 |
| 5 | 207 |
| 6 | 629 |
| 7 | 3982 |
| 8 | 13216 |
| 9 | 24090 |
| 10 | 65698 |
| 11 | 131076 |
| 12 | 176801 |
| 13 | 2074822 |
| 14 | 5203944 |
| 15 | 3716991 |