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 | 1 |
| 2 | 4 |
| 3 | 7 |
| 4 | 34 |
| 5 | 37 |
| 6 | 67 |
| 7 | 334 |
| 8 | 337 |
| 9 | 367 |
| 10 | 667 |
| 11 | 3334 |
| 12 | 3337 |
| 13 | 3367 |
| 14 | 3667 |
| 15 | 6667 |
| 16 | 33334 |
| 17 | 33337 |
| 18 | 33367 |
| 19 | 33667 |
| 20 | 36667 |
| 21 | 66667 |
| 22 | 333334 |
| 23 | 333337 |
| 24 | 333367 |
| 25 | 333667 |
| 26 | 336667 |
| 27 | 366667 |
| 28 | 666667 |
| 29 | 3333334 |
| 30 | 3333337 |
| 31 | 3333367 |
| 32 | 3333667 |
| 33 | 3336667 |