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.

A082553 Number of sets of distinct positive integers whose geometric mean is an integer, the largest integer of a set is n.

Table of values

n a(n)
1 1
2 1
3 1
4 3
5 1
6 1
7 1
8 3
9 7
10 1
11 1
12 7
13 1
14 1
15 1
16 9
17 1
18 29
19 1
20 3
21 1
22 1
23 1
24 31
25 15
26 1
27 87
28 3
29 1
30 1
31 1
32 115
33 1
34 1
35 1
36 257
37 1
38 1
39 1
40 17
41 1
42 1
43 1
44 3
45 21
46 1
47 1
48 519
49 23
50 141
51 1
52 3
53 1
54 847
55 1
56 19
57 1
58 1
59 1
60 215
61 1
62 1
63 27
64 1557
65 1
66 1
67 1
68 3
69 1
70 1
71 1
72 2617
73 1
74 1
75 3125
76 3
77 1
78 1

List of values

[1, 1, 1, 3, 1, 1, 1, 3, 7, 1, 1, 7, 1, 1, 1, 9, 1, 29, 1, 3, 1, 1, 1, 31, 15, 1, 87, 3, 1, 1, 1, 115, 1, 1, 1, 257, 1, 1, 1, 17, 1, 1, 1, 3, 21, 1, 1, 519, 23, 141, 1, 3, 1, 847, 1, 19, 1, 1, 1, 215, 1, 1, 27, 1557, 1, 1, 1, 3, 1, 1, 1, 2617, 1, 1, 3125, 3, 1, 1]