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.

A327029 T(n, k) = Sum_{d|n} phi(d) * A008284(n/d, k) for n >= 1, T(0, 0) = 1. Triangle read by rows for 0 <= k <= n.

Table of values

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

List of values

[1, 0, 1, 0, 2, 1, 0, 3, 1, 1, 0, 4, 3, 1, 1, 0, 5, 2, 2, 1, 1, 0, 6, 6, 4, 2, 1, 1, 0, 7, 3, 4, 3, 2, 1, 1, 0, 8, 8, 6, 6, 3, 2, 1, 1, 0, 9, 6, 9, 6, 5, 3, 2, 1, 1, 0, 10, 11, 10, 10, 8, 5, 3, 2, 1, 1, 0, 11, 5, 10, 11, 10, 7, 5, 3, 2, 1, 1, 0, 12, 17, 19, 19, 14, 12, 7, 5, 3, 2, 1, 1]