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 | 102 |
| 2 | 120 |
| 3 | 201 |
| 4 | 210 |
| 5 | 100122 |
| 6 | 100212 |
| 7 | 100221 |
| 8 | 101022 |
| 9 | 101202 |
| 10 | 101220 |
| 11 | 102012 |
| 12 | 102021 |
| 13 | 102102 |
| 14 | 102120 |
| 15 | 102201 |
| 16 | 102210 |
| 17 | 110022 |
| 18 | 110202 |
| 19 | 110220 |
| 20 | 112002 |
| 21 | 112020 |
| 22 | 112200 |
| 23 | 120012 |
| 24 | 120021 |
| 25 | 120102 |
| 26 | 120120 |
| 27 | 120201 |
| 28 | 120210 |
| 29 | 121002 |
| 30 | 121020 |
| 31 | 121200 |
| 32 | 122001 |
| 33 | 122010 |
| 34 | 122100 |