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 | 1 |
2 | 0 |
3 | 1 |
4 | 2 |
5 | 0 |
6 | 1 |
7 | 4 |
8 | 18 |
9 | 0 |
10 | 1 |
11 | 6 |
12 | 40 |
13 | 234 |
14 | 0 |
15 | 1 |
16 | 8 |
17 | 66 |
18 | 540 |
19 | 3570 |
20 | 0 |
21 | 1 |
22 | 10 |
23 | 96 |
24 | 926 |
25 | 8400 |
26 | 59586 |
27 | 0 |
28 | 1 |
29 | 12 |
30 | 130 |
31 | 1400 |
32 | 14706 |
33 | 141876 |
34 | 1053570 |
35 | 0 |
36 | 1 |
37 | 14 |
38 | 168 |
39 | 1970 |
40 | 22720 |
41 | 251622 |
42 | 2528760 |
43 | 19392490 |
44 | 0 |
45 | 1 |
46 | 16 |
47 | 210 |
48 | 2644 |
49 | 32690 |
50 | 394152 |
51 | 4524786 |
52 | 46815116 |
53 | 367677090 |
54 | 0 |