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.

A080426 a(1)=1, a(2)=3; all terms are either 1 or 3; each run of 3's is followed by a run of two 1's; and a(n) is the length of the n-th run of 3's.

Table of values

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

List of values

[1, 3, 1, 1, 3, 3, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 3, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 3, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 1, 1, 3, 1, 1, 3, 3, 3, 1, 1]