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) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 14 |
| 4 | 42 |
| 5 | 248 |
| 6 | 594 |
| 7 | 744 |
| 8 | 4064 |
| 9 | 7668 |
| 10 | 12192 |
| 11 | 16775168 |
| 12 | 50325504 |
| 13 | 4294934528 |
| 14 | 12884803584 |
| 15 | 68719345664 |
| 16 | 206158036992 |