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.

A088420 Number of primes in arithmetic progression starting with 3 and with d = 2n.

Table of values

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

List of values

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