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 | 114 |
| 2 | 5610 |
| 3 | 195800 |
| 4 | 5765500 |
| 5 | 155357384 |
| 6 | 4002695088 |
| 7 | 101180433024 |
| 8 | 2549865473424 |
| 9 | 64728375139872 |
| 10 | 1666424486271456 |
| 11 | 43708768764064128 |
| 12 | 1171582385481357696 |
| 13 | 32157753536587053312 |
| 14 | 905080567903692754176 |