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 | 10572 |
| 2 | 574185 |
| 3 | 27768032 |
| 4 | 1376627608 |
| 5 | 68026656422 |
| 6 | 3366668183708 |
| 7 | 166653005250320 |
| 8 | 8251614370134644 |
| 9 | 408619818725184342 |
| 10 | 20236484168674868650 |
| 11 | 1002238533164802053394 |
| 12 | 49638595435230968839084 |