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 | 1 |
| 1 | 1 |
| 2 | 8 |
| 3 | 71 |
| 4 | 729 |
| 5 | 8842 |
| 6 | 125399 |
| 7 | 2026249 |
| 8 | 36458010 |
| 9 | 719866701 |
| 10 | 15453821461 |
| 11 | 358100141148 |
| 12 | 8899677678109 |
| 13 | 235877034446341 |
| 14 | 6634976621814472 |
| 15 | 197269776623577659 |
| 16 | 6177654735731310917 |
| 17 | 203136983117907790890 |
| 18 | 6994626418539177737803 |
| 19 | 251584328242318030774781 |