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 | 10 |
| 2 | 21 |
| 3 | 32 |
| 4 | 43 |
| 5 | 104 |
| 6 | 131 |
| 7 | 142 |
| 8 | 203 |
| 9 | 214 |
| 10 | 241 |
| 11 | 313 |
| 12 | 324 |
| 13 | 401 |
| 14 | 412 |
| 15 | 423 |
| 16 | 1011 |
| 17 | 1022 |
| 18 | 1044 |
| 19 | 1132 |
| 20 | 1143 |
| 21 | 1204 |
| 22 | 1231 |
| 23 | 1242 |
| 24 | 1402 |
| 25 | 1413 |
| 26 | 1424 |
| 27 | 2001 |
| 28 | 2012 |
| 29 | 2023 |
| 30 | 2034 |
| 31 | 2111 |
| 32 | 2133 |
| 33 | 2221 |
| 34 | 2232 |
| 35 | 2342 |
| 36 | 2403 |
| 37 | 2414 |
| 38 | 3013 |
| 39 | 3024 |
| 40 | 3101 |
| 41 | 3134 |
| 42 | 3211 |
| 43 | 3233 |
| 44 | 3244 |
| 45 | 3321 |