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.

A280363 a(n) = floor(log_p(n)) where p = A020639(n), i.e., the least prime factor of n.

Table of values

n a(n)
1 0
2 1
3 1
4 2
5 1
6 2
7 1
8 3
9 2
10 3
11 1
12 3
13 1
14 3
15 2
16 4
17 1
18 4
19 1
20 4
21 2
22 4
23 1
24 4
25 2
26 4
27 3
28 4
29 1
30 4
31 1
32 5
33 3
34 5
35 2
36 5
37 1
38 5
39 3
40 5
41 1
42 5
43 1
44 5
45 3
46 5
47 1
48 5
49 2
50 5
51 3
52 5
53 1
54 5
55 2
56 5
57 3
58 5
59 1
60 5
61 1
62 5
63 3
64 6
65 2
66 6
67 1
68 6
69 3
70 6
71 1
72 6
73 1
74 6
75 3
76 6
77 2
78 6
79 1
80 6
81 4
82 6
83 1
84 6
85 2
86 6
87 4
88 6
89 1
90 6
91 2
92 6
93 4
94 6
95 2
96 6
97 1
98 6
99 4
100 6
101 1
102 6
103 1
104 6
105 4
106 6
107 1
108 6
109 1
110 6
111 4
112 6
113 1
114 6
115 2
116 6
117 4
118 6
119 2
120 6

List of values

[0, 1, 1, 2, 1, 2, 1, 3, 2, 3, 1, 3, 1, 3, 2, 4, 1, 4, 1, 4, 2, 4, 1, 4, 2, 4, 3, 4, 1, 4, 1, 5, 3, 5, 2, 5, 1, 5, 3, 5, 1, 5, 1, 5, 3, 5, 1, 5, 2, 5, 3, 5, 1, 5, 2, 5, 3, 5, 1, 5, 1, 5, 3, 6, 2, 6, 1, 6, 3, 6, 1, 6, 1, 6, 3, 6, 2, 6, 1, 6, 4, 6, 1, 6, 2, 6, 4, 6, 1, 6, 2, 6, 4, 6, 2, 6, 1, 6, 4, 6, 1, 6, 1, 6, 4, 6, 1, 6, 1, 6, 4, 6, 1, 6, 2, 6, 4, 6, 2, 6]