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 | 0 |
| 2 | 0 |
| 3 | 0 |
| 4 | 1 |
| 5 | 26 |
| 6 | 32596 |
| 7 | 34359509614 |
| 8 | 1180591620442534312297 |
| 9 | 85070591730234605240519066638188154620 |
| 10 | 1645504557321206042154968331851433202636630333819989444275003856 |