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 | 7 |
| 3 | 49 |
| 4 | 77 |
| 5 | 343 |
| 6 | 539 |
| 7 | 777 |
| 8 | 2401 |
| 9 | 3773 |
| 10 | 5439 |
| 11 | 5929 |
| 12 | 7777 |
| 13 | 16807 |
| 14 | 26411 |
| 15 | 38073 |
| 16 | 41503 |
| 17 | 54439 |
| 18 | 59829 |
| 19 | 77777 |
| 20 | 117649 |
| 21 | 184877 |
| 22 | 266511 |
| 23 | 290521 |
| 24 | 381073 |
| 25 | 418803 |
| 26 | 456533 |
| 27 | 544439 |
| 28 | 598829 |
| 29 | 603729 |
| 30 | 777777 |
| 31 | 823543 |
| 32 | 1294139 |
| 33 | 1865577 |
| 34 | 2033647 |
| 35 | 2667511 |
| 36 | 2931621 |