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 | 1371 |
| 2 | 1372 |
| 3 | 1381 |
| 4 | 1383 |
| 5 | 1392 |
| 6 | 1393 |
| 7 | 1471 |
| 8 | 1472 |
| 9 | 1491 |
| 10 | 1494 |
| 11 | 1502 |
| 12 | 1504 |
| 13 | 1581 |
| 14 | 1583 |
| 15 | 1591 |
| 16 | 1594 |
| 17 | 1613 |
| 18 | 1614 |
| 19 | 1692 |
| 20 | 1693 |
| 21 | 1702 |
| 22 | 1704 |
| 23 | 1713 |
| 24 | 1714 |
| 25 | 2371 |
| 26 | 2372 |
| 27 | 2381 |
| 28 | 2383 |
| 29 | 2392 |
| 30 | 2393 |
| 31 | 2571 |
| 32 | 2572 |
| 33 | 2601 |
| 34 | 2605 |
| 35 | 2612 |
| 36 | 2615 |
| 37 | 2681 |
| 38 | 2683 |
| 39 | 2701 |
| 40 | 2705 |
| 41 | 2723 |
| 42 | 2725 |