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 | 17 |
| 2 | 317 |
| 3 | 6317 |
| 4 | 26317 |
| 5 | 126317 |
| 6 | 21126317 |
| 7 | 3521126317 |
| 8 | 433521126317 |
| 9 | 23433521126317 |
| 10 | 3423433521126317 |
| 11 | 473423433521126317 |
| 12 | 10473423433521126317 |
| 13 | 2610473423433521126317 |
| 14 | 42610473423433521126317 |