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 | 0 |
| 2 | 8388 |
| 3 | 28998090 |
| 4 | 9160633008 |
| 5 | 794699283870 |
| 6 | 30467722237092 |
| 7 | 664933856235516 |
| 8 | 9607670743188672 |
| 9 | 101313843935748516 |
| 10 | 833333209516666980 |
| 11 | 5606249568529546134 |
| 12 | 31947998829845093424 |
| 13 | 158374695227965468434 |