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 | 9 |
| 2 | 100 |
| 3 | 101 |
| 4 | 112 |
| 5 | 133 |
| 6 | 164 |
| 7 | 206 |
| 8 | 268 |
| 9 | 351 |
| 10 | 364 |
| 11 | 408 |
| 12 | 492 |
| 13 | 517 |
| 14 | 592 |
| 15 | 618 |
| 16 | 705 |
| 17 | 762 |
| 18 | 789 |
| 19 | 887 |
| 20 | 966 |
| 21 | 1027 |
| 22 | 1098 |
| 23 | 1179 |
| 24 | 1270 |
| 25 | 1271 |
| 26 | 1282 |
| 27 | 1303 |
| 28 | 1334 |
| 29 | 1375 |
| 30 | 1426 |
| 31 | 1487 |
| 32 | 1558 |
| 33 | 1639 |
| 34 | 1730 |
| 35 | 1731 |
| 36 | 1742 |
| 37 | 1763 |
| 38 | 1794 |
| 39 | 1835 |
| 40 | 1886 |
| 41 | 1947 |
| 42 | 2019 |
| 43 | 2111 |
| 44 | 2123 |
| 45 | 2155 |
| 46 | 2207 |
| 47 | 2279 |
| 48 | 2371 |