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 | 16 |
| 2 | 1936 |
| 3 | 197136 |
| 4 | 19749136 |
| 5 | 1975269136 |
| 6 | 197530469136 |
| 7 | 19753082469136 |
| 8 | 1975308602469136 |
| 9 | 197530863802469136 |
| 10 | 19753086415802469136 |
| 11 | 1975308641935802469136 |
| 12 | 197530864197135802469136 |
| 13 | 19753086419749135802469136 |
| 14 | 1975308641975269135802469136 |
| 15 | 197530864197530469135802469136 |