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 | 1 |
1 | 3 |
2 | 54 |
3 | 5292 |
4 | 2723220 |
5 | 7242690816 |
6 | 98719805835000 |
7 | 6861326937782575104 |
8 | 2423821818614367091537296 |
9 | 4342290918217084382837760000000 |
10 | 39389085041906366256386454778172877408 |
11 | 1807026244113880332171608161401397806958116864 |