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 | 1 |
| 2 | 5 |
| 3 | 247 |
| 4 | 160403 |
| 5 | 1305759171 |
| 6 | 134771061592765 |
| 7 | 176541437214450498265 |
| 8 | 2940055615889904390546839103 |
| 9 | 623112842926151670996790416231139397 |