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.

A370130 a(n) = A369669(A276086(n)), where A369669 is the greatest common divisor of the first and second arithmetic derivative of n, and A276086 is the primorial base exp-function.

Table of values

n a(n)
0 0
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 4
9 1
10 1
11 1
12 1
13 3
14 1
15 1
16 16
17 1
18 5
19 5
20 5
21 5
22 5
23 5
24 100
25 25
26 25
27 175
28 25
29 25
30 1
31 3
32 1
33 1
34 1
35 1
36 4
37 1
38 1
39 1
40 1
41 1
42 1
43 1
44 4
45 17
46 1
47 1
48 5
49 5
50 5
51 5
52 20
53 5
54 25
55 25
56 25
57 25
58 325
59 25
60 1
61 1
62 1
63 1
64 4
65 1
66 1
67 1
68 1
69 1
70 11
71 1
72 4
73 1
74 1
75 1
76 1
77 1
78 5
79 5
80 320
81 95
82 5
83 5
84 25
85 25
86 25
87 25
88 100
89 25
90 7
91 7
92 112
93 7
94 7
95 7
96 7
97 7
98 7
99 7
100 28

List of values

[0, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 3, 1, 1, 16, 1, 5, 5, 5, 5, 5, 5, 100, 25, 25, 175, 25, 25, 1, 3, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 1, 4, 17, 1, 1, 5, 5, 5, 5, 20, 5, 25, 25, 25, 25, 325, 25, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 11, 1, 4, 1, 1, 1, 1, 1, 5, 5, 320, 95, 5, 5, 25, 25, 25, 25, 100, 25, 7, 7, 112, 7, 7, 7, 7, 7, 7, 7, 28]