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 | 1 |
| 2 | 5 |
| 3 | 64 |
| 4 | 929 |
| 5 | 53442 |
| 6 | 12401485 |
| 7 | 6206090116 |
| 8 | 5955851105844 |
| 9 | 17910530164706984 |
| 10 | 181493083347714402782 |
| 11 | 4372527304675102033719740 |
| 12 | 234910588564744761536499928490 |