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 | 11 |
| 3 | 13 |
| 4 | 121 |
| 5 | 143 |
| 6 | 169 |
| 7 | 1331 |
| 8 | 1573 |
| 9 | 1859 |
| 10 | 2197 |
| 11 | 14641 |
| 12 | 17303 |
| 13 | 20449 |
| 14 | 24167 |
| 15 | 28561 |
| 16 | 161051 |
| 17 | 190333 |
| 18 | 224939 |
| 19 | 265837 |
| 20 | 314171 |
| 21 | 371293 |
| 22 | 1771561 |
| 23 | 2093663 |
| 24 | 2474329 |
| 25 | 2924207 |
| 26 | 3455881 |
| 27 | 4084223 |
| 28 | 4826809 |
| 29 | 19487171 |
| 30 | 23030293 |
| 31 | 27217619 |