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 | 2187 |
| 2 | 4782969 |
| 3 | 862007289 |
| 4 | 27088106846 |
| 5 | 377163884938 |
| 6 | 3219192158949 |
| 7 | 20229461153969 |
| 8 | 106414755617907 |
| 9 | 508945269335431 |