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 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 9 |
| 6 | 31 |
| 7 | 51 |
| 8 | 53 |
| 9 | 71 |
| 10 | 73 |
| 11 | 75 |
| 12 | 91 |
| 13 | 93 |
| 14 | 95 |
| 15 | 97 |
| 16 | 531 |
| 17 | 731 |
| 18 | 751 |
| 19 | 753 |
| 20 | 931 |
| 21 | 951 |
| 22 | 953 |
| 23 | 971 |
| 24 | 973 |
| 25 | 975 |
| 26 | 7531 |
| 27 | 9531 |
| 28 | 9731 |
| 29 | 9751 |
| 30 | 9753 |
| 31 | 97531 |