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.

A001899 Number of divisors of n of the form 5k+4; a(0) = 0.

Table of values

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

List of values

[0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 2, 0, 0, 1, 2, 1, 0, 0, 1, 0, 1, 0, 2, 0, 1, 1, 1, 0, 1, 0, 2, 1, 0, 0, 2, 1, 0, 0, 1, 0, 2, 0, 2, 1, 1, 1, 1, 0, 0, 1, 2, 0, 0, 0, 2, 1, 1, 0, 3, 0, 1, 0, 2, 0, 1, 1, 1, 1, 0, 0, 3, 0, 0]