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 | 4 |
3 | 24 |
4 | 0 |
5 | 224 |
6 | -64 |
7 | 2880 |
8 | -1920 |
9 | 0 |
10 | 48064 |
11 | -49984 |
12 | 1024 |
13 | 989184 |
14 | -1365504 |
15 | 129024 |
16 | 0 |
17 | 24218624 |
18 | -40854528 |
19 | 8583168 |
20 | -16384 |
21 | 687083520 |
22 | -1352540160 |
23 | 471859200 |
24 | -8355840 |
25 | 0 |
26 | 22151148544 |
27 | -49507063808 |
28 | 24589796352 |
29 | -1331806208 |
30 | 262144 |
31 | 799546834944 |
32 | -1993321955328 |
33 | 1286051069952 |
34 | -141582532608 |
35 | 536346624 |
36 | 0 |
37 | 31934834253824 |
38 | -87721489006592 |
39 | 69349000355840 |
40 | -12549922078720 |
41 | 198078103552 |
42 | -4194304 |