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 | 1010 |
| 2 | 1102 |
| 3 | 1120 |
| 4 | 1203 |
| 5 | 1212 |
| 6 | 1230 |
| 7 | 1304 |
| 8 | 1313 |
| 9 | 1322 |
| 10 | 1340 |
| 11 | 1405 |
| 12 | 1414 |
| 13 | 1423 |
| 14 | 1432 |
| 15 | 1450 |
| 16 | 1506 |
| 17 | 1515 |
| 18 | 1524 |
| 19 | 1533 |
| 20 | 1542 |
| 21 | 1560 |
| 22 | 1607 |
| 23 | 1616 |
| 24 | 1625 |
| 25 | 1634 |
| 26 | 1643 |
| 27 | 1652 |
| 28 | 1670 |
| 29 | 1708 |
| 30 | 1717 |
| 31 | 1726 |
| 32 | 1735 |
| 33 | 1744 |
| 34 | 1753 |
| 35 | 1762 |
| 36 | 1780 |
| 37 | 1809 |
| 38 | 1818 |
| 39 | 1827 |
| 40 | 1836 |
| 41 | 1845 |
| 42 | 1854 |