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 | 563 |
| 8 | 653 |
| 9 | 683 |
| 10 | 853 |
| 11 | 863 |
| 12 | 883 |
| 13 | 3533 |
| 14 | 3583 |
| 15 | 3833 |
| 16 | 3853 |
| 17 | 3863 |
| 18 | 5333 |
| 19 | 5563 |
| 20 | 5653 |
| 21 | 5683 |
| 22 | 6353 |
| 23 | 6553 |
| 24 | 6563 |
| 25 | 6653 |
| 26 | 6833 |
| 27 | 6863 |
| 28 | 6883 |
| 29 | 8353 |
| 30 | 8363 |
| 31 | 8563 |
| 32 | 8663 |
| 33 | 8863 |
| 34 | 33353 |
| 35 | 33533 |
| 36 | 33563 |
| 37 | 33863 |
| 38 | 35353 |
| 39 | 35363 |
| 40 | 35533 |
| 41 | 35863 |
| 42 | 36353 |
| 43 | 36383 |
| 44 | 36563 |
| 45 | 36583 |