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.

A309287 Square array T(v, m), read by antidiagonals, for the Rogel-Klee arithmetic function: number of positive integers h in the set [m] for which gcd(h, m) is v-th-power-free, i.e., gcd(h, m) is not divisible by any v-th power of an integer > 1 (with v, m >= 1).

Table of values

n a(n)
1 1
2 1
3 1
4 2
5 2
6 1
7 2
8 3
9 2
10 1
11 4
12 3
13 3
14 2
15 1
16 2
17 5
18 4
19 3
20 2
21 1
22 6
23 6
24 5
25 4
26 3
27 2
28 1
29 4
30 7
31 6
32 5
33 4
34 3
35 2
36 1
37 6
38 6
39 7
40 6
41 5
42 4
43 3
44 2
45 1
46 4
47 8
48 7
49 7
50 6
51 5
52 4
53 3
54 2
55 1
56 10
57 10
58 9
59 8
60 7
61 6
62 5
63 4
64 3
65 2
66 1
67 4
68 11
69 10
70 9
71 8
72 7
73 6
74 5
75 4
76 3
77 2
78 1
79 12
80 9
81 11
82 10
83 9
84 8
85 7
86 6
87 5
88 4
89 3
90 2
91 1
92 6
93 13
94 12
95 11
96 10
97 9
98 8
99 7
100 6
101 5
102 4
103 3
104 2
105 1

List of values

[1, 1, 1, 2, 2, 1, 2, 3, 2, 1, 4, 3, 3, 2, 1, 2, 5, 4, 3, 2, 1, 6, 6, 5, 4, 3, 2, 1, 4, 7, 6, 5, 4, 3, 2, 1, 6, 6, 7, 6, 5, 4, 3, 2, 1, 4, 8, 7, 7, 6, 5, 4, 3, 2, 1, 10, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 4, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 12, 9, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 6, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1]