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 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 111 |
| 6 | 131 |
| 7 | 141 |
| 8 | 161 |
| 9 | 323 |
| 10 | 343 |
| 11 | 373 |
| 12 | 535 |
| 13 | 565 |
| 14 | 717 |
| 15 | 737 |
| 16 | 747 |
| 17 | 767 |
| 18 | 10301 |
| 19 | 10601 |
| 20 | 11511 |
| 21 | 12421 |
| 22 | 12621 |
| 23 | 13031 |
| 24 | 13331 |
| 25 | 15151 |
| 26 | 16561 |
| 27 | 17471 |
| 28 | 30403 |
| 29 | 30503 |
| 30 | 30703 |
| 31 | 31313 |
| 32 | 31713 |
| 33 | 32023 |
| 34 | 32323 |
| 35 | 33433 |
| 36 | 34343 |
| 37 | 34443 |
| 38 | 35053 |
| 39 | 35353 |
| 40 | 36463 |
| 41 | 36563 |
| 42 | 36763 |
| 43 | 37473 |