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 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 242 |
| 6 | 292 |
| 7 | 484 |
| 8 | 676 |
| 9 | 18581 |
| 10 | 20402 |
| 11 | 20902 |
| 12 | 40804 |
| 13 | 60706 |
| 14 | 81518 |
| 15 | 1085801 |
| 16 | 1805081 |
| 17 | 2004002 |
| 18 | 2009002 |
| 19 | 4008004 |
| 20 | 6007006 |
| 21 | 8015108 |
| 22 | 8105018 |
| 23 | 100858001 |
| 24 | 108050801 |
| 25 | 180050081 |
| 26 | 200040002 |
| 27 | 200090002 |
| 28 | 400080004 |
| 29 | 600070006 |
| 30 | 800151008 |
| 31 | 801050108 |
| 32 | 810050018 |