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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.

A080508 Triangle whose n-th row contains the least set (ordered lexicographically) of n distinct positive integers whose geometric mean is an integer.

Table of values

n a(n)
1 1
2 1
3 4
4 1
5 2
6 4
7 1
8 2
9 3
10 216
11 1
12 2
13 3
14 4
15 324
16 1
17 2
18 3
19 4
20 5
21 6075000
22 1
23 2
24 3
25 4
26 5
27 6
28 30375000
29 1
30 2
31 3
32 4
33 5
34 6
35 7
36 750453558750000
37 1
38 2
39 3
40 4
41 5
42 6
43 7
44 8
45 19699405917187500
46 1
47 2
48 3
49 4
50 5
51 6
52 7
53 8
54 9
55 459652804734375000
56 1
57 2
58 3
59 4
60 5
61 6
62 7
63 8
64 9
65 10
66 9652708899421875000

List of values

[1, 1, 4, 1, 2, 4, 1, 2, 3, 216, 1, 2, 3, 4, 324, 1, 2, 3, 4, 5, 6075000, 1, 2, 3, 4, 5, 6, 30375000, 1, 2, 3, 4, 5, 6, 7, 750453558750000, 1, 2, 3, 4, 5, 6, 7, 8, 19699405917187500, 1, 2, 3, 4, 5, 6, 7, 8, 9, 459652804734375000, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 9652708899421875000]