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 | 11 |
| 2 | 125 |
| 3 | 9029 |
| 4 | 543605 |
| 5 | 1614529685 |
| 6 | 83828316389 |
| 7 | 215703854542469 |
| 8 | 10789535445362645 |
| 9 | 26579017117027313525 |
| 10 | 3183060102526390833854309 |
| 11 | 156448938516521406467644085 |
| 12 | 18500229372226631089176131976869 |
| 13 | 44487435359130133495783012898708549 |