cp's OEIS Frontend

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.

A219365 a(n) = P(n)/(L(n)*P(n/2)*P(n/3)*P(n/7)*P(n/43)*...) with P(n) = floor(n)!, L(n) the LCM of the first n integers and where the sequence 2, 3, 7, 43, ... is A000058.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 2
11 2
12 1
13 1
14 1
15 3
16 3
17 3
18 1
19 1
20 2
21 2
22 4
23 4
24 1
25 5
26 10
27 10
28 5
29 5
30 1
31 1
32 1
33 3
34 6
35 42
36 7
37 7
38 14
39 42
40 84
41 84
42 2
43 2
44 4
45 12
46 24
47 24
48 3
49 3
50 6
51 18
52 36
53 36
54 4
55 220
56 55
57 165
58 330
59 330
60 33
61 33
62 66
63 22
64 22
65 1430
66 130
67 130
68 260
69 780
70 156
71 156
72 13

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 3, 3, 3, 1, 1, 2, 2, 4, 4, 1, 5, 10, 10, 5, 5, 1, 1, 1, 3, 6, 42, 7, 7, 14, 42, 84, 84, 2, 2, 4, 12, 24, 24, 3, 3, 6, 18, 36, 36, 4, 220, 55, 165, 330, 330, 33, 33, 66, 22, 22, 1430, 130, 130, 260, 780, 156, 156, 13]