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 | 5 |
2 | -25 |
3 | 300 |
4 | -3000 |
5 | 34375 |
6 | -426750 |
7 | 5539375 |
8 | -73968750 |
9 | 1010175000 |
10 | -14043011250 |
11 | 198006675000 |
12 | -2824523453125 |
13 | 40684553625000 |
14 | -590871274218750 |
15 | 8642318714253125 |
16 | -127185323309250000 |
17 | 1881843237600000000 |
18 | -27976771190059687500 |
19 | 417688301999460937500 |
20 | -6259735680122821875000 |