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 | 0 |
| 2 | 1 |
| 3 | 7 |
| 4 | 8 |
| 5 | 49 |
| 6 | 50 |
| 7 | 56 |
| 8 | 57 |
| 9 | 343 |
| 10 | 344 |
| 11 | 350 |
| 12 | 351 |
| 13 | 392 |
| 14 | 393 |
| 15 | 399 |
| 16 | 400 |
| 17 | 2401 |
| 18 | 2402 |
| 19 | 2408 |
| 20 | 2409 |
| 21 | 2450 |
| 22 | 2451 |
| 23 | 2457 |
| 24 | 2458 |
| 25 | 2744 |
| 26 | 2745 |
| 27 | 2751 |
| 28 | 2752 |
| 29 | 2793 |
| 30 | 2794 |
| 31 | 2800 |
| 32 | 2801 |
| 33 | 16807 |
| 34 | 16808 |
| 35 | 16814 |
| 36 | 16815 |
| 37 | 16856 |
| 38 | 16857 |
| 39 | 16863 |
| 40 | 16864 |
| 41 | 17150 |
| 42 | 17151 |
| 43 | 17157 |