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 | 4 |
| 2 | 1681 |
| 3 | 3364 |
| 4 | 3481 |
| 5 | 4624 |
| 6 | 7225 |
| 7 | 9025 |
| 8 | 1054729 |
| 9 | 1069156 |
| 10 | 1073296 |
| 11 | 1149184 |
| 12 | 1168561 |
| 13 | 1183744 |
| 14 | 1227664 |
| 15 | 1263376 |
| 16 | 1288225 |
| 17 | 1308736 |
| 18 | 1329409 |
| 19 | 1366561 |
| 20 | 1517824 |
| 21 | 1522756 |
| 22 | 1545049 |
| 23 | 1567504 |
| 24 | 1585081 |
| 25 | 1607824 |
| 26 | 1630729 |
| 27 | 1635841 |
| 28 | 1677025 |
| 29 | 1682209 |
| 30 | 1705636 |
| 31 | 1729225 |