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 | 89391959 |
| 2 | 89591959 |
| 3 | 519512471 |
| 4 | 519512473 |
| 5 | 531324041 |
| 6 | 561324041 |
| 7 | 699023791 |
| 8 | 699023891 |
| 9 | 874481011 |
| 10 | 874487011 |
| 11 | 1862537503 |
| 12 | 2232483271 |
| 13 | 2232483871 |
| 14 | 2608559351 |
| 15 | 3127181789 |
| 16 | 3157181789 |
| 17 | 3928401949 |
| 18 | 3928401989 |
| 19 | 4070171669 |
| 20 | 4070171969 |
| 21 | 5225628323 |
| 22 | 5309756339 |
| 23 | 5525628323 |