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 | 272259344081 |
| 2 | 272259344083 |
| 3 | 272259344089 |
| 4 | 272259344099 |
| 5 | 272259344113 |
| 6 | 272259344131 |
| 7 | 272259344153 |
| 8 | 272259344179 |
| 9 | 272259344209 |
| 10 | 272259344243 |
| 11 | 272259344281 |
| 12 | 272259344323 |
| 13 | 272259344369 |
| 14 | 272259344419 |
| 15 | 272259344881 |
| 16 | 272259345433 |
| 17 | 272259345539 |
| 18 | 272259347123 |
| 19 | 272259347281 |
| 20 | 272259347953 |