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 | 1 |
| 2 | 1049 |
| 3 | 1490 |
| 4 | 10002 |
| 5 | 10005 |
| 6 | 10011 |
| 7 | 10020 |
| 8 | 10050 |
| 9 | 10101 |
| 10 | 10110 |
| 11 | 10149 |
| 12 | 10200 |
| 13 | 10500 |
| 14 | 11001 |
| 15 | 11010 |
| 16 | 11100 |
| 17 | 11490 |
| 18 | 12000 |
| 19 | 14499 |
| 20 | 15000 |
| 21 | 17610 |
| 22 | 18000 |
| 23 | 20001 |
| 24 | 20010 |
| 25 | 20100 |
| 26 | 21000 |
| 27 | 24900 |
| 28 | 30000 |
| 29 | 33200 |
| 30 | 35000 |
| 31 | 36100 |
| 32 | 44900 |
| 33 | 44990 |
| 34 | 45100 |