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 | 114 |
| 3 | 1667 |
| 4 | 32636 |
| 5 | 790734 |
| 6 | 22806904 |
| 7 | 760734085 |
| 8 | 28749778264 |
| 9 | 1212060756101 |
| 10 | 56320777311152 |
| 11 | 2856799572599106 |
| 12 | 156942568859096170 |
| 13 | 9277021941286520402 |
| 14 | 586789114650518446860 |
| 15 | 39528041606657916420501 |