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 | 5 |
| 3 | 53 |
| 4 | 83 |
| 5 | 353 |
| 6 | 383 |
| 7 | 853 |
| 8 | 883 |
| 9 | 3533 |
| 10 | 3583 |
| 11 | 3833 |
| 12 | 3853 |
| 13 | 5333 |
| 14 | 8353 |
| 15 | 33353 |
| 16 | 33533 |
| 17 | 35353 |
| 18 | 35533 |
| 19 | 38333 |
| 20 | 38833 |
| 21 | 53353 |
| 22 | 55333 |
| 23 | 83383 |
| 24 | 83833 |
| 25 | 85333 |
| 26 | 85853 |
| 27 | 88853 |
| 28 | 88883 |
| 29 | 333383 |
| 30 | 333533 |
| 31 | 335383 |
| 32 | 335833 |
| 33 | 338383 |
| 34 | 353333 |
| 35 | 353833 |
| 36 | 355853 |
| 37 | 383533 |
| 38 | 383833 |
| 39 | 533353 |