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 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 9 |
| 6 | 121 |
| 7 | 222 |
| 8 | 323 |
| 9 | 424 |
| 10 | 525 |
| 11 | 626 |
| 12 | 727 |
| 13 | 828 |
| 14 | 929 |
| 15 | 1111 |
| 16 | 2112 |
| 17 | 3113 |
| 18 | 4114 |
| 19 | 5115 |
| 20 | 6116 |
| 21 | 7117 |
| 22 | 8118 |
| 23 | 9119 |
| 24 | 10401 |
| 25 | 11211 |
| 26 | 12921 |
| 27 | 13731 |
| 28 | 14541 |
| 29 | 15351 |
| 30 | 16161 |
| 31 | 18881 |
| 32 | 19691 |
| 33 | 20402 |
| 34 | 21212 |
| 35 | 22922 |
| 36 | 23732 |
| 37 | 24542 |
| 38 | 25352 |
| 39 | 26162 |
| 40 | 28882 |
| 41 | 29692 |
| 42 | 30403 |
| 43 | 31213 |
| 44 | 32923 |