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.

A199323 Number of primes of the form n*(n+1)+2*k-3 with k from 1 to n+1.

Table of values

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

List of values

[1, 2, 3, 2, 3, 4, 3, 4, 5, 3, 5, 5, 5, 5, 6, 5, 6, 6, 6, 8, 8, 5, 7, 10, 7, 8, 7, 10, 7, 9, 11, 10, 8, 9, 13, 5, 11, 12, 14, 8, 12, 11, 8, 13, 14, 10, 13, 15, 9, 11, 19, 13, 12, 12, 12, 13, 16, 14, 16, 16, 13, 18, 15, 16, 12, 17, 16]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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