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 | 10 |
| 2 | 800 |
| 3 | 58000 |
| 4 | 4080000 |
| 5 | 283100000 |
| 6 | 19496000000 |
| 7 | 1336380000000 |
| 8 | 91320000000000 |
| 9 | 6226591000000000 |
| 10 | 423871680000000000 |