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 | 7 |
| 3 | 37 |
| 4 | 73 |
| 5 | 83 |
| 6 | 337 |
| 7 | 373 |
| 8 | 383 |
| 9 | 733 |
| 10 | 773 |
| 11 | 787 |
| 12 | 877 |
| 13 | 883 |
| 14 | 887 |
| 15 | 3373 |
| 16 | 3733 |
| 17 | 3833 |
| 18 | 3877 |
| 19 | 7333 |
| 20 | 7873 |
| 21 | 7877 |
| 22 | 7883 |
| 23 | 8377 |
| 24 | 8387 |
| 25 | 8737 |
| 26 | 8783 |
| 27 | 8837 |
| 28 | 8887 |
| 29 | 33377 |
| 30 | 33773 |
| 31 | 37337 |
| 32 | 37783 |
| 33 | 38333 |
| 34 | 38377 |
| 35 | 38737 |
| 36 | 38783 |
| 37 | 38833 |
| 38 | 38873 |
| 39 | 73387 |
| 40 | 73783 |
| 41 | 73877 |
| 42 | 73883 |
| 43 | 77377 |
| 44 | 77383 |