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 | 0 |
| 2 | 45 |
| 3 | 75 |
| 4 | 423 |
| 5 | 445 |
| 6 | 450 |
| 7 | 513 |
| 8 | 750 |
| 9 | 891 |
| 10 | 1089 |
| 11 | 1305 |
| 12 | 2382 |
| 13 | 2497 |
| 14 | 4230 |
| 15 | 4445 |
| 16 | 4450 |
| 17 | 4488 |
| 18 | 4491 |
| 19 | 4500 |
| 20 | 4505 |
| 21 | 4513 |
| 22 | 4878 |
| 23 | 5013 |
| 24 | 5045 |
| 25 | 5130 |
| 26 | 5133 |
| 27 | 5868 |
| 28 | 7317 |
| 29 | 7500 |
| 30 | 7686 |
| 31 | 8360 |
| 32 | 8703 |
| 33 | 8891 |
| 34 | 8901 |
| 35 | 8910 |
| 36 | 8911 |
| 37 | 8955 |
| 38 | 8991 |
| 39 | 9756 |
| 40 | 9891 |
| 41 | 10089 |
| 42 | 10449 |
| 43 | 10889 |
| 44 | 10890 |
| 45 | 10891 |