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 | 1312 |
| 3 | 3256 |
| 4 | 3257 |
| 5 | 3936 |
| 6 | 3937 |
| 7 | 4000 |
| 8 | 4001 |
| 9 | 4032 |
| 10 | 38880 |
| 11 | 38881 |
| 12 | 39000 |
| 13 | 39001 |
| 14 | 19928280 |
| 15 | 19928281 |
| 16 | 21975136 |
| 17 | 21975137 |
| 18 | 21975305 |
| 19 | 21975312 |
| 20 | 22054032 |