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 | 33 |
| 3 | 48 |
| 4 | 66 |
| 5 | 87 |
| 6 | 99 |
| 7 | 117 |
| 8 | 216 |
| 9 | 273 |
| 10 | 288 |
| 11 | 297 |
| 12 | 333 |
| 13 | 484 |
| 14 | 513 |
| 15 | 528 |
| 16 | 666 |
| 17 | 783 |
| 18 | 819 |
| 19 | 999 |
| 20 | 1323 |
| 21 | 1331 |
| 22 | 1452 |
| 23 | 1474 |
| 24 | 1602 |
| 25 | 2178 |
| 26 | 2622 |
| 27 | 3333 |
| 28 | 4884 |
| 29 | 4961 |
| 30 | 6666 |
| 31 | 7161 |
| 32 | 7575 |
| 33 | 9999 |
| 34 | 10989 |
| 35 | 11979 |
| 36 | 12969 |
| 37 | 14652 |
| 38 | 14733 |
| 39 | 15972 |
| 40 | 20402 |
| 41 | 21021 |
| 42 | 21534 |
| 43 | 21648 |
| 44 | 23331 |