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.

A079123 Number of 4's in n# (n primorial) = 4's in A002110(n).

Table of values

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

List of values

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 1, 0, 3, 3, 1, 1, 0, 2, 4, 5, 2, 2, 4, 2, 1, 8, 3, 7, 9, 4, 4, 6, 5, 3, 8, 2, 8, 3, 9, 6, 4, 6, 8, 7, 7, 4, 12, 4, 15, 10, 10, 9, 13, 10, 15, 7, 7, 19, 15, 9, 20, 12, 11, 12, 15, 19, 12, 15, 20, 10, 12, 13, 13, 19, 16, 13, 21, 17, 17, 23, 19, 13, 13, 15, 18, 20, 16, 27]