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 | 5391411025 |
| 2 | 26957055125 |
| 3 | 28816162375 |
| 4 | 33426748355 |
| 5 | 34393484125 |
| 6 | 37739877175 |
| 7 | 40342627325 |
| 8 | 48150877775 |
| 9 | 50866790975 |
| 10 | 53356378075 |
| 11 | 55959128225 |
| 12 | 59305521275 |
| 13 | 60711976325 |
| 14 | 61164628525 |
| 15 | 63395557225 |
| 16 | 64899009175 |
| 17 | 67275433225 |
| 18 | 68972878975 |
| 19 | 70088343325 |
| 20 | 74922022175 |
| 21 | 75665665075 |