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 | 11 |
| 3 | 181 |
| 4 | 211 |
| 5 | 281 |
| 6 | 811 |
| 7 | 821 |
| 8 | 881 |
| 9 | 1181 |
| 10 | 1811 |
| 11 | 2111 |
| 12 | 2221 |
| 13 | 2281 |
| 14 | 8111 |
| 15 | 8221 |
| 16 | 8821 |
| 17 | 11821 |
| 18 | 12211 |
| 19 | 12281 |
| 20 | 12821 |
| 21 | 18121 |
| 22 | 18181 |
| 23 | 18211 |
| 24 | 21121 |
| 25 | 21211 |
| 26 | 21221 |
| 27 | 21821 |
| 28 | 21881 |
| 29 | 22111 |
| 30 | 22811 |
| 31 | 28111 |
| 32 | 28181 |
| 33 | 28211 |
| 34 | 81181 |
| 35 | 81281 |
| 36 | 82811 |
| 37 | 88211 |
| 38 | 88811 |
| 39 | 111121 |