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 | 89269 |
| 2 | 184438202074309 |
| 3 | 379889466040169687349246148321558634248221737128245658182879616485078366262882828905566134219669 |