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 | 2 |
| 3 | 9 |
| 4 | 13 |
| 5 | 18 |
| 6 | 26 |
| 7 | 81 |
| 8 | 82 |
| 9 | 83 |
| 10 | 84 |
| 11 | 85 |
| 12 | 90 |
| 13 | 99 |
| 14 | 108 |
| 15 | 117 |
| 16 | 121 |
| 17 | 162 |
| 18 | 163 |
| 19 | 164 |
| 20 | 168 |
| 21 | 170 |
| 22 | 171 |
| 23 | 180 |
| 24 | 216 |
| 25 | 234 |
| 26 | 242 |
| 27 | 244 |
| 28 | 252 |
| 29 | 325 |
| 30 | 333 |
| 31 | 488 |
| 32 | 504 |
| 33 | 650 |
| 34 | 666 |
| 35 | 729 |
| 36 | 730 |
| 37 | 731 |
| 38 | 732 |
| 39 | 733 |
| 40 | 738 |
| 41 | 739 |
| 42 | 740 |
| 43 | 741 |
| 44 | 742 |
| 45 | 747 |
| 46 | 748 |
| 47 | 749 |
| 48 | 750 |
| 49 | 751 |