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 | 7 |
| 2 | 49 |
| 3 | 343 |
| 4 | 2401 |
| 5 | 16807 |
| 6 | 117649 |
| 7 | 823542 |
| 8 | 5764787 |
| 9 | 40353460 |
| 10 | 282473877 |
| 11 | 1977314738 |
| 12 | 13841186359 |
| 13 | 96888186864 |
| 14 | 678216484506 |
| 15 | 4747509626755 |
| 16 | 33232527033825 |
| 17 | 232627406762898 |
| 18 | 1628389870025548 |
| 19 | 11398715248992477 |
| 20 | 79790909854760475 |