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 | 199 |
| 2 | 317 |
| 3 | 509 |
| 4 | 523 |
| 5 | 619 |
| 6 | 839 |
| 7 | 887 |
| 8 | 1069 |
| 9 | 1129 |
| 10 | 1259 |
| 11 | 1327 |
| 12 | 1409 |
| 13 | 1459 |
| 14 | 1499 |
| 15 | 1637 |
| 16 | 1669 |
| 17 | 1709 |
| 18 | 1759 |
| 19 | 1789 |
| 20 | 1847 |
| 21 | 1889 |
| 22 | 1913 |
| 23 | 1951 |
| 24 | 2039 |
| 25 | 2069 |
| 26 | 2099 |
| 27 | 2179 |
| 28 | 2311 |
| 29 | 2357 |
| 30 | 2399 |
| 31 | 2477 |
| 32 | 2503 |
| 33 | 2557 |
| 34 | 2579 |
| 35 | 2819 |
| 36 | 2939 |
| 37 | 2971 |
| 38 | 3049 |
| 39 | 3089 |
| 40 | 3137 |
| 41 | 3169 |
| 42 | 3229 |
| 43 | 3259 |