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 | 0 |
| 1 | 64 |
| 2 | 7744 |
| 3 | 788544 |
| 4 | 78996544 |
| 5 | 7901076544 |
| 6 | 790121876544 |
| 7 | 79012329876544 |
| 8 | 7901234409876544 |
| 9 | 790123455209876544 |
| 10 | 79012345663209876544 |
| 11 | 7901234567743209876544 |
| 12 | 790123456788543209876544 |
| 13 | 79012345678996543209876544 |
| 14 | 7901234567901076543209876544 |
| 15 | 790123456790121876543209876544 |