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 | 525 |
| 2 | 4725 |
| 3 | 34125 |
| 4 | 38325 |
| 5 | 269325 |
| 6 | 307125 |
| 7 | 2150925 |
| 8 | 2184525 |
| 9 | 2423925 |
| 10 | 2457525 |
| 11 | 17203725 |
| 12 | 17506125 |
| 13 | 19358325 |
| 14 | 19660725 |
| 15 | 137626125 |
| 16 | 137894925 |
| 17 | 139810125 |
| 18 | 140078925 |
| 19 | 154833525 |
| 20 | 155102325 |
| 21 | 157017525 |
| 22 | 157286325 |