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 | 1 |
| 3 | 4 |
| 4 | 49 |
| 5 | 1369 |
| 6 | 1849 |
| 7 | 5776 |
| 8 | 8281 |
| 9 | 47089 |
| 10 | 67081 |
| 11 | 1132096 |
| 12 | 1682209 |
| 13 | 1776889 |
| 14 | 2307361 |
| 15 | 2418025 |
| 16 | 7311616 |
| 17 | 11336689 |
| 18 | 60481729 |
| 19 | 64464841 |
| 20 | 82428241 |
| 21 | 389944009 |
| 22 | 2176875649 |
| 23 | 2197078129 |
| 24 | 2302944121 |
| 25 | 2323722025 |
| 26 | 2963604721 |