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 | 101 |
| 2 | 103 |
| 3 | 109 |
| 4 | 401 |
| 5 | 601 |
| 6 | 701 |
| 7 | 1009 |
| 8 | 1021 |
| 9 | 1033 |
| 10 | 1051 |
| 11 | 1063 |
| 12 | 1201 |
| 13 | 1303 |
| 14 | 1801 |
| 15 | 2011 |
| 16 | 2017 |
| 17 | 2081 |
| 18 | 2801 |
| 19 | 3001 |
| 20 | 3061 |
| 21 | 3301 |
| 22 | 4001 |
| 23 | 4021 |
| 24 | 4201 |
| 25 | 4801 |
| 26 | 5011 |
| 27 | 5021 |
| 28 | 5051 |
| 29 | 5081 |
| 30 | 5101 |
| 31 | 5501 |
| 32 | 5801 |
| 33 | 6301 |