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 | 13 |
| 2 | 137 |
| 3 | 13711 |
| 4 | 137119 |
| 5 | 13711927 |
| 6 | 1371192763 |
| 7 | 137119276331 |
| 8 | 13711927633153 |
| 9 | 1371192763315321 |
| 10 | 137119276331532113 |
| 11 | 13711927633153211383 |
| 12 | 1371192763315321138333 |
| 13 | 137119276331532113833339 |
| 14 | 13711927633153211383333949 |
| 15 | 1371192763315321138333394951 |
| 16 | 137119276331532113833339495177 |
| 17 | 13711927633153211383333949517787 |