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 | 10901 |
| 2 | 20702 |
| 3 | 30503 |
| 4 | 40304 |
| 5 | 50105 |
| 6 | 101070101 |
| 7 | 102050201 |
| 8 | 103030301 |
| 9 | 104010401 |
| 10 | 201050102 |
| 11 | 202030202 |
| 12 | 203010302 |
| 13 | 301030103 |
| 14 | 302010203 |
| 15 | 401010104 |
| 16 | 1010105010101 |
| 17 | 1010203020101 |
| 18 | 1010301030101 |
| 19 | 1020103010201 |
| 20 | 1020201020201 |