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.

A238733 Number of primes p < n such that floor((n-p)/3) = (q-1)*(q-3)/8 for some prime q.

Table of values

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

List of values

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