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 | 0 |
| 2 | 40 |
| 3 | 42 |
| 4 | 313 |
| 5 | 485 |
| 6 | 1841 |
| 7 | 8923 |
| 8 | 8554 |
| 9 | 81783 |
| 10 | 165742 |
| 11 | 1371683 |
| 12 | 1727601 |
| 13 | 9386566 |
| 14 | 28190643 |
| 15 | 63416789 |