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 | 1201 |
| 2 | 1213 |
| 3 | 1217 |
| 4 | 1301 |
| 5 | 1303 |
| 6 | 1307 |
| 7 | 1319 |
| 8 | 1327 |
| 9 | 1409 |
| 10 | 1423 |
| 11 | 1427 |
| 12 | 1429 |
| 13 | 1439 |
| 14 | 1523 |
| 15 | 1549 |
| 16 | 1601 |
| 17 | 1607 |
| 18 | 1609 |
| 19 | 1613 |
| 20 | 1619 |
| 21 | 1627 |
| 22 | 1637 |
| 23 | 1657 |
| 24 | 1709 |
| 25 | 1723 |
| 26 | 1747 |
| 27 | 1759 |
| 28 | 1801 |
| 29 | 1823 |
| 30 | 1847 |
| 31 | 1867 |
| 32 | 1879 |
| 33 | 1901 |
| 34 | 1907 |
| 35 | 1913 |
| 36 | 1949 |
| 37 | 1979 |
| 38 | 2309 |
| 39 | 2417 |
| 40 | 2423 |
| 41 | 2437 |
| 42 | 2503 |
| 43 | 2539 |