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 | 8 |
| 2 | 15 |
| 3 | 308 |
| 4 | 3030 |
| 5 | 29757 |
| 6 | 7825005 |
| 7 | 63 |
| 8 | 448 |
| 9 | 3116 |
| 10 | 3421 |
| 11 | 40321 |
| 12 | 9 |
| 13 | 99 |
| 14 | 156 |
| 15 | 2010 |
| 16 | 25574 |
| 17 | 13041 |
| 18 | 268260 |
| 19 | 28427091 |
| 20 | 2982139245 |
| 21 | 822310337549 |
| 22 | 6193152 |
| 23 | 1935360000 |
| 24 | 599660087082 |
| 25 | 170242287969600 |
| 26 | 152 |
| 27 | 27195 |
| 28 | 1867560 |
| 29 | 1934427 |
| 30 | 125939163 |
| 31 | 132627603 |
| 32 | 74520844992 |