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.

A330749 a(n) = gcd(n, A064989(n)), where A064989 is fully multiplicative with a(2) = 1 and a(prime(k)) = prime(k-1) for odd primes.

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

List of values

[1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 6, 1, 1, 1, 1, 5, 4, 1, 1, 1, 1, 1, 2, 1, 1, 3, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 6, 1, 1, 1, 1, 1, 2, 1, 1, 1, 5, 1, 4, 1, 1, 3, 1, 7, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 6, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 15]