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 | 8 |
| 2 | 78 |
| 3 | 722 |
| 4 | 6546 |
| 5 | 59018 |
| 6 | 531378 |
| 7 | 4782842 |
| 8 | 43046466 |
| 9 | 387419978 |
| 10 | 3486783378 |
| 11 | 31381057562 |
| 12 | 282429532386 |
| 13 | 2541865820138 |
| 14 | 22876792438578 |
| 15 | 205891132061882 |
| 16 | 1853020188786306 |
| 17 | 16677181699535498 |
| 18 | 150094635296736978 |