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) |
|---|---|
| 0 | 9 |
| 1 | 10 |
| 2 | 19 |
| 3 | 105 |
| 4 | 124 |
| 5 | 725 |
| 6 | 849 |
| 7 | 1574 |
| 8 | 29181 |
| 9 | 30755 |
| 10 | 59936 |
| 11 | 330435 |
| 12 | 390371 |
| 13 | 2282290 |
| 14 | 2672661 |
| 15 | 4954951 |
| 16 | 91861779 |
| 17 | 96816730 |
| 18 | 188678509 |
| 19 | 1040209275 |
| 20 | 1228887784 |
| 21 | 7184648195 |
| 22 | 8413535979 |
| 23 | 15598184174 |
| 24 | 289180851111 |
| 25 | 304779035285 |
| 26 | 593959886396 |
| 27 | 3274578467265 |