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 | 2 |
| 1 | 17 |
| 2 | 5 |
| 3 | 225 |
| 4 | 120 |
| 5 | 15 |
| 6 | 4080 |
| 7 | 3050 |
| 8 | 700 |
| 9 | 50 |
| 10 | 94440 |
| 11 | 89225 |
| 12 | 28625 |
| 13 | 3775 |
| 14 | 175 |
| 15 | 2666880 |
| 16 | 3006000 |
| 17 | 1208975 |
| 18 | 223175 |
| 19 | 19225 |
| 20 | 625 |
| 21 | 89016480 |
| 22 | 115299900 |
| 23 | 54824650 |
| 24 | 12689800 |
| 25 | 1537100 |
| 26 | 93500 |
| 27 | 2250 |
| 28 | 3430929600 |
| 29 | 4973077800 |
| 30 | 2695596850 |
| 31 | 737744125 |