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 | 10 |
| 1 | 30 |
| 2 | 354 |
| 3 | 72354 |
| 4 | 4338079554 |
| 5 | 18448597098193370754 |
| 6 | 340282370354622283774333836163326852354 |
| 7 | 115792089237316207213755562747271079374483128445080168181132550891186006948354 |