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 | 1387 |
| 2 | 368218 |
| 3 | 86468392 |
| 4 | 18714498069 |
| 5 | 3807002935896 |
| 6 | 738228105542702 |
| 7 | 138224799691696144 |
| 8 | 25201320751243781001 |