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 | 7 |
| 2 | 67 |
| 3 | 127 |
| 4 | 307 |
| 5 | 367 |
| 6 | 487 |
| 7 | 547 |
| 8 | 607 |
| 9 | 727 |
| 10 | 787 |
| 11 | 907 |
| 12 | 967 |
| 13 | 1087 |
| 14 | 1327 |
| 15 | 1447 |
| 16 | 1567 |
| 17 | 1627 |
| 18 | 1747 |
| 19 | 1867 |
| 20 | 1987 |
| 21 | 2287 |
| 22 | 2347 |
| 23 | 2467 |
| 24 | 2647 |
| 25 | 2707 |
| 26 | 2767 |
| 27 | 2887 |
| 28 | 3067 |
| 29 | 3187 |
| 30 | 3307 |
| 31 | 3547 |
| 32 | 3607 |
| 33 | 3727 |
| 34 | 3847 |
| 35 | 3907 |
| 36 | 3967 |
| 37 | 4027 |
| 38 | 4327 |
| 39 | 4447 |
| 40 | 4507 |
| 41 | 4567 |
| 42 | 4987 |
| 43 | 5107 |
| 44 | 5167 |
| 45 | 5227 |