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 | 7 |
4 | 32 |
5 | 149 |
6 | 240 |
7 | -12725 |
8 | -378880 |
9 | -8550135 |
10 | -178474240 |
11 | -3550577425 |
12 | -65428992000 |
13 | -985800819875 |
14 | -4641229465600 |
15 | 548638404441075 |
16 | 36708748623872000 |
17 | 1716785996161588625 |
18 | 69798035394846720000 |
19 | 2571598453132219756375 |
20 | 84313566554397999104000 |