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.

A117531 Number of primes in the n-th row of the triangle in A117530.

Table of values

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

List of values

[1, 2, 3, 3, 5, 3, 7, 3, 5, 6, 6, 6, 13, 3, 11, 8, 12, 8, 13, 10, 8, 7, 12, 10, 9, 21, 6, 22, 11, 7, 13, 12, 21, 13, 14, 16, 18, 7, 20, 17, 21, 20, 24, 14, 18, 20, 16, 16, 35, 10, 18, 29, 18, 30, 30, 26, 21, 18, 21, 29, 16, 22, 32, 40, 10, 27, 24, 25, 45, 18, 39, 40, 43, 11, 11]

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

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