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.

A083415 Triangle read by rows: T(n,k) is defined as follows. Write the numbers from 1 to n^2 consecutively in n rows of length n; T(n,k) = number of primes in k-th row.

Table of values

n a(n)
1 0
2 1
3 1
4 2
5 1
6 1
7 2
8 2
9 1
10 1
11 3
12 1
13 2
14 2
15 1
16 3
17 2
18 2
19 2
20 1
21 1
22 4
23 2
24 2
25 1
26 2
27 2
28 2
29 4
30 2
31 3
32 2
33 1
34 3
35 1
36 2
37 4
38 3
39 2
40 2
41 3
42 2
43 2
44 2
45 2
46 4
47 4
48 2
49 2
50 3
51 2
52 2
53 3
54 2
55 1
56 5
57 3
58 3
59 3
60 2
61 2
62 3
63 2
64 2
65 4
66 1
67 5
68 4
69 2
70 4
71 2
72 3
73 3
74 1
75 4
76 2
77 2
78 2
79 6
80 3
81 3
82 3
83 3
84 3
85 3
86 3
87 3
88 1
89 3
90 2
91 3
92 6
93 3
94 4
95 3
96 3
97 4
98 2
99 4

List of values

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