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 | 12 |
| 2 | 108 |
| 3 | 1026 |
| 4 | 10080 |
| 5 | 100242 |
| 6 | 1000728 |
| 7 | 10002186 |
| 8 | 100006560 |
| 9 | 1000019682 |
| 10 | 10000059048 |
| 11 | 100000177146 |
| 12 | 1000000531440 |
| 13 | 10000001594322 |
| 14 | 100000004782968 |
| 15 | 1000000014348906 |
| 16 | 10000000043046720 |
| 17 | 100000000129140162 |