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 | 2 |
| 2 | 22 |
| 3 | 121 |
| 4 | 202 |
| 5 | 211 |
| 6 | 1021 |
| 7 | 1201 |
| 8 | 2011 |
| 9 | 2111 |
| 10 | 2221 |
| 11 | 2222 |
| 12 | 10201 |
| 13 | 10211 |
| 14 | 12011 |
| 15 | 12101 |
| 16 | 12211 |
| 17 | 12221 |
| 18 | 20011 |
| 19 | 20021 |
| 20 | 20101 |
| 21 | 20201 |
| 22 | 20222 |
| 23 | 21001 |
| 24 | 21011 |
| 25 | 21101 |
| 26 | 21121 |
| 27 | 21211 |
| 28 | 21221 |
| 29 | 22111 |
| 30 | 22121 |
| 31 | 101021 |
| 32 | 101221 |
| 33 | 102001 |
| 34 | 102101 |
| 35 | 102121 |
| 36 | 110221 |
| 37 | 111121 |
| 38 | 111211 |
| 39 | 111221 |
| 40 | 112111 |
| 41 | 112121 |