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.

A374034 a(n) = A276150(gcd(A276085(n), A328768(n))), where A276150 is the digit sum in primorial base, A276085 is the primorial base log-function, and A328768 is the first primorial based variant of arithmetic derivative.

Table of values

n a(n)
1 0
2 1
3 1
4 1
5 1
6 1
7 1
8 2
9 2
10 1
11 1
12 2
13 1
14 1
15 2
16 2
17 1
18 1
19 1
20 2
21 2
22 1
23 1
24 1
25 2
26 1
27 1
28 2
29 1
30 1
31 1
32 3
33 2
34 1
35 2
36 1
37 1
38 1
39 2
40 3
41 1
42 1
43 1
44 2
45 1
46 1
47 1
48 1
49 2
50 1
51 2
52 2
53 1
54 1
55 2
56 2
57 4
58 1
59 1
60 1
61 1
62 1
63 1
64 1
65 2
66 1
67 1
68 2
69 2
70 1
71 1
72 1
73 1
74 1
75 1
76 2
77 4
78 1
79 1
80 1
81 2
82 1
83 1
84 1
85 2
86 1
87 2
88 2
89 1
90 1
91 6
92 2
93 2
94 1
95 2
96 1
97 1
98 1
99 1
100 1
101 1
102 1
103 1
104 2
105 3

List of values

[0, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 3, 2, 1, 2, 1, 1, 1, 2, 3, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 2, 2, 1, 1, 2, 2, 4, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 2, 4, 1, 1, 1, 2, 1, 1, 1, 2, 1, 2, 2, 1, 1, 6, 2, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3]