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.

A179926 Number of permutations of the divisors of n of the form d_1=n, d_2, d_3, ..., d_tau(n) such that d_(i+1)/d_i is a prime or 1/prime for all i.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 2
7 1
8 1
9 1
10 2
11 1
12 3
13 1
14 2
15 2
16 1
17 1
18 3
19 1
20 3
21 2
22 2
23 1
24 4
25 1
26 2
27 1
28 3
29 1
30 18
31 1
32 1
33 2
34 2
35 2
36 8
37 1
38 2
39 2
40 4
41 1
42 18
43 1
44 3
45 3
46 2
47 1
48 5
49 1
50 3
51 2
52 3
53 1
54 4
55 2
56 4
57 2
58 2
59 1
60 106
61 1
62 2
63 3
64 1
65 2
66 18
67 1
68 3
69 2
70 18
71 1
72 17
73 1
74 2
75 3
76 3
77 2
78 18
79 1
80 5
81 1
82 2
83 1
84 106
85 2
86 2
87 2
88 4
89 1
90 106
91 2
92 3
93 2
94 2
95 2
96 6
97 1
98 3
99 3
100 8
101 1
102 18
103 1
104 4
105 18
106 2
107 1
108 17
109 1
110 18
111 2
112 5
113 1
114 18
115 2
116 3
117 3
118 2
119 2
120 572

List of values

[1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 2, 1, 1, 3, 1, 3, 2, 2, 1, 4, 1, 2, 1, 3, 1, 18, 1, 1, 2, 2, 2, 8, 1, 2, 2, 4, 1, 18, 1, 3, 3, 2, 1, 5, 1, 3, 2, 3, 1, 4, 2, 4, 2, 2, 1, 106, 1, 2, 3, 1, 2, 18, 1, 3, 2, 18, 1, 17, 1, 2, 3, 3, 2, 18, 1, 5, 1, 2, 1, 106, 2, 2, 2, 4, 1, 106, 2, 3, 2, 2, 2, 6, 1, 3, 3, 8, 1, 18, 1, 4, 18, 2, 1, 17, 1, 18, 2, 5, 1, 18, 2, 3, 3, 2, 2, 572]