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 | 43 |
| 3 | 83 |
| 4 | 383 |
| 5 | 433 |
| 6 | 443 |
| 7 | 463 |
| 8 | 643 |
| 9 | 683 |
| 10 | 863 |
| 11 | 883 |
| 12 | 3343 |
| 13 | 3433 |
| 14 | 3463 |
| 15 | 3643 |
| 16 | 3833 |
| 17 | 3863 |
| 18 | 4363 |
| 19 | 4463 |
| 20 | 4483 |
| 21 | 4643 |
| 22 | 4663 |
| 23 | 6343 |
| 24 | 6833 |
| 25 | 6863 |
| 26 | 6883 |
| 27 | 8363 |
| 28 | 8443 |
| 29 | 8663 |
| 30 | 8863 |
| 31 | 33343 |
| 32 | 33863 |
| 33 | 34483 |
| 34 | 34843 |
| 35 | 34883 |
| 36 | 36343 |
| 37 | 36383 |
| 38 | 36433 |
| 39 | 36643 |
| 40 | 36683 |
| 41 | 36833 |
| 42 | 38333 |
| 43 | 38833 |
| 44 | 43633 |