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 | 3 |
| 2 | 19 |
| 3 | 43 |
| 4 | 67 |
| 5 | 139 |
| 6 | 211 |
| 7 | 571 |
| 8 | 691 |
| 9 | 883 |
| 10 | 1483 |
| 11 | 2011 |
| 12 | 2539 |
| 13 | 2851 |
| 14 | 3331 |
| 15 | 3931 |
| 16 | 5779 |
| 17 | 8011 |
| 18 | 8779 |
| 19 | 9811 |
| 20 | 10459 |
| 21 | 11131 |
| 22 | 17851 |
| 23 | 18379 |
| 24 | 33331 |
| 25 | 34819 |
| 26 | 38299 |
| 27 | 42571 |
| 28 | 56659 |
| 29 | 62731 |
| 30 | 65179 |
| 31 | 79699 |
| 32 | 90931 |
| 33 | 91939 |
| 34 | 93811 |
| 35 | 95419 |
| 36 | 102859 |
| 37 | 130579 |
| 38 | 138139 |
| 39 | 170179 |
| 40 | 196771 |
| 41 | 204019 |
| 42 | 223939 |
| 43 | 234259 |
| 44 | 254731 |
| 45 | 285139 |