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 | 83 |
| 2 | 109 |
| 3 | 12401 |
| 4 | 58321 |
| 5 | 24344401 |
| 6 | 96342481 |
| 7 | 2504902481 |
| 8 | 26582634158080081 |
| 9 | 1143053268797440081 |
| 10 | 262134882788466688081 |
| 11 | 427380210218181008588800081 |
| 12 | 142299187144047333874073600081 |
| 13 | 7825229077844441903818866688000081 |