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 | 91 |
| 3 | 49141 |
| 4 | 144991 |
| 5 | 94414411 |
| 6 | 941194191 |
| 7 | 1194944941 |
| 8 | 491919414441 |
| 9 | 9999119991411411 |
| 10 | 4149449911949149941 |
| 11 | 11144994144991949991 |
| 12 | 191444491991911949911 |
| 13 | 144949944191119411441191 |
| 14 | 9449441991199141999494149499499111914141 |