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) |
|---|---|
| 0 | 1 |
| 1 | 12 |
| 2 | 25 |
| 3 | 57 |
| 4 | 81 |
| 5 | 141 |
| 6 | 169 |
| 7 | 259 |
| 8 | 297 |
| 9 | 413 |
| 10 | 441 |
| 11 | 621 |
| 12 | 625 |
| 13 | 825 |
| 14 | 873 |
| 15 | 1079 |
| 16 | 1089 |
| 17 | 1403 |
| 18 | 1369 |
| 19 | 1739 |
| 20 | 1729 |
| 21 | 2021 |
| 22 | 2025 |
| 23 | 2507 |
| 24 | 2433 |
| 25 | 2859 |
| 26 | 2905 |
| 27 | 3301 |
| 28 | 3249 |
| 29 | 4029 |
| 30 | 3721 |
| 31 | 4509 |
| 32 | 4305 |
| 33 | 4793 |
| 34 | 4989 |
| 35 | 5551 |
| 36 | 5329 |
| 37 | 6027 |
| 38 | 6025 |
| 39 | 6807 |
| 40 | 6561 |
| 41 | 7917 |
| 42 | 7225 |
| 43 | 8357 |
| 44 | 8121 |
| 45 | 8677 |
| 46 | 8649 |
| 47 | 9843 |
| 48 | 9481 |
| 49 | 10889 |