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 | 409 |
| 2 | 1129 |
| 3 | 5449 |
| 4 | 13009 |
| 5 | 16249 |
| 6 | 49009 |
| 7 | 61609 |
| 8 | 68449 |
| 9 | 91129 |
| 10 | 99409 |
| 11 | 167449 |
| 12 | 178609 |
| 13 | 190129 |
| 14 | 356449 |
| 15 | 477409 |
| 16 | 534649 |
| 17 | 595129 |
| 18 | 680809 |
| 19 | 748849 |
| 20 | 796009 |
| 21 | 820129 |
| 22 | 844609 |
| 23 | 920209 |
| 24 | 972409 |
| 25 | 999049 |
| 26 | 1225129 |
| 27 | 1315849 |
| 28 | 1378129 |
| 29 | 1441849 |
| 30 | 1607449 |