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 | 3 |
| 2 | 15 |
| 3 | 18 |
| 4 | 21 |
| 5 | 39 |
| 6 | 87 |
| 7 | 117 |
| 8 | 120 |
| 9 | 135 |
| 10 | 243 |
| 11 | 360 |
| 12 | 366 |
| 13 | 381 |
| 14 | 426 |
| 15 | 429 |
| 16 | 615 |
| 17 | 642 |
| 18 | 723 |
| 19 | 879 |
| 20 | 1002 |
| 21 | 1023 |
| 22 | 1170 |
| 23 | 1173 |
| 24 | 1224 |
| 25 | 1458 |
| 26 | 1506 |
| 27 | 1518 |
| 28 | 1530 |
| 29 | 1731 |
| 30 | 1896 |
| 31 | 1920 |
| 32 | 1965 |
| 33 | 2007 |
| 34 | 2025 |
| 35 | 2058 |
| 36 | 2133 |
| 37 | 2160 |
| 38 | 2376 |
| 39 | 2379 |
| 40 | 2382 |
| 41 | 2406 |
| 42 | 2553 |
| 43 | 2577 |
| 44 | 2673 |
| 45 | 2703 |
| 46 | 2727 |