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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.

A268613 Lucas numbers mod 20.

Table of values

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

List of values

[2, 1, 3, 4, 7, 11, 18, 9, 7, 16, 3, 19, 2, 1, 3, 4, 7, 11, 18, 9, 7, 16, 3, 19, 2, 1, 3, 4, 7, 11, 18, 9, 7, 16, 3, 19, 2, 1, 3, 4, 7, 11, 18, 9, 7, 16, 3, 19, 2, 1, 3, 4, 7, 11, 18, 9, 7, 16, 3, 19, 2, 1, 3, 4, 7, 11, 18, 9, 7, 16, 3, 19, 2, 1, 3, 4, 7, 11, 18, 9, 7, 16, 3, 19, 2, 1, 3, 4, 7, 11, 18, 9, 7, 16, 3, 19, 2, 1, 3, 4, 7, 11]

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