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 | 19 |
| 2 | 31 |
| 3 | 67 |
| 4 | 79 |
| 5 | 127 |
| 6 | 139 |
| 7 | 151 |
| 8 | 199 |
| 9 | 211 |
| 10 | 307 |
| 11 | 547 |
| 12 | 619 |
| 13 | 739 |
| 14 | 751 |
| 15 | 919 |
| 16 | 1087 |
| 17 | 1231 |
| 18 | 1459 |
| 19 | 1471 |
| 20 | 1759 |
| 21 | 1987 |
| 22 | 2131 |
| 23 | 2179 |
| 24 | 2239 |
| 25 | 2251 |
| 26 | 2467 |
| 27 | 2647 |
| 28 | 2851 |
| 29 | 2971 |
| 30 | 3319 |
| 31 | 3331 |
| 32 | 3391 |
| 33 | 3499 |
| 34 | 3511 |
| 35 | 3559 |
| 36 | 3571 |
| 37 | 3727 |
| 38 | 3739 |
| 39 | 4027 |
| 40 | 4567 |
| 41 | 4759 |
| 42 | 5107 |
| 43 | 5347 |
| 44 | 5419 |
| 45 | 5431 |
| 46 | 6367 |
| 47 | 6607 |
| 48 | 6619 |
| 49 | 7027 |
| 50 | 7219 |
| 51 | 7459 |