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.

A153661 Triangle read by rows: R(n,k) = 2^(composite(n)-composite(k)) mod composite(n), 1<=k<=n.

Table of values

n a(n)
1 1
2 4
3 1
4 0
5 4
6 1
7 5
8 8
9 2
10 1
11 4
12 6
13 4
14 2
15 1
16 4
17 4
18 4
19 8
20 4
21 1
22 2
23 4
24 8
25 4
26 2
27 4
28 1
29 8
30 2
31 8
32 4
33 2
34 8
35 2
36 1
37 0
38 0
39 0
40 0
41 0
42 0
43 4
44 2
45 1
46 4
47 10
48 16
49 8
50 4
51 10
52 16
53 8
54 4
55 1
56 16
57 4
58 16
59 8
60 4
61 16
62 4
63 12
64 16
65 4
66 1
67 11
68 8
69 2
70 1
71 11
72 8
73 2
74 1
75 11
76 8
77 2
78 1
79 14
80 20
81 16
82 8
83 4
84 12
85 14
86 18
87 20
88 16
89 4
90 2
91 1
92 16
93 16
94 16
95 8
96 16
97 16
98 16
99 8
100 16
101 16
102 16
103 8
104 4
105 1

List of values

[1, 4, 1, 0, 4, 1, 5, 8, 2, 1, 4, 6, 4, 2, 1, 4, 4, 4, 8, 4, 1, 2, 4, 8, 4, 2, 4, 1, 8, 2, 8, 4, 2, 8, 2, 1, 0, 0, 0, 0, 0, 0, 4, 2, 1, 4, 10, 16, 8, 4, 10, 16, 8, 4, 1, 16, 4, 16, 8, 4, 16, 4, 12, 16, 4, 1, 11, 8, 2, 1, 11, 8, 2, 1, 11, 8, 2, 1, 14, 20, 16, 8, 4, 12, 14, 18, 20, 16, 4, 2, 1, 16, 16, 16, 8, 16, 16, 16, 8, 16, 16, 16, 8, 4, 1]