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 | 4 |
| 2 | 22 |
| 3 | 121 |
| 4 | 202 |
| 5 | 301 |
| 6 | 1003 |
| 7 | 1111 |
| 8 | 2101 |
| 9 | 10003 |
| 10 | 10021 |
| 11 | 10102 |
| 12 | 10201 |
| 13 | 11002 |
| 14 | 11101 |
| 15 | 12001 |
| 16 | 30001 |
| 17 | 100021 |
| 18 | 100102 |
| 19 | 100201 |
| 20 | 101011 |
| 21 | 110002 |
| 22 | 110101 |
| 23 | 111001 |
| 24 | 200011 |
| 25 | 200101 |
| 26 | 1000021 |
| 27 | 1000111 |
| 28 | 1000201 |
| 29 | 1001002 |
| 30 | 1001101 |
| 31 | 1110001 |
| 32 | 2001001 |
| 33 | 3000001 |
| 34 | 10000003 |
| 35 | 10000021 |
| 36 | 10000201 |
| 37 | 10010002 |
| 38 | 10020001 |