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 | 2 |
| 3 | 12 |
| 4 | 21 |
| 5 | 38 |
| 6 | 102 |
| 7 | 201 |
| 8 | 1002 |
| 9 | 1049 |
| 10 | 2001 |
| 11 | 10002 |
| 12 | 10679 |
| 13 | 20001 |
| 14 | 20348 |
| 15 | 100002 |
| 16 | 100549 |
| 17 | 200001 |
| 18 | 202512 |
| 19 | 375501 |
| 20 | 643771 |
| 21 | 1000002 |
| 22 | 1020348 |
| 23 | 2000001 |
| 24 | 2002848 |
| 25 | 10000002 |
| 26 | 10200201 |
| 27 | 20000001 |
| 28 | 20024988 |
| 29 | 20100102 |
| 30 | 100000002 |
| 31 | 100202001 |