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.

A199922 Table read by rows, T(0,0) = 1 and for n>0, 0<=k<=3^(n-1) T(n,k) = gcd(k,3^(n-1)).

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 1
5 1
6 3
7 9
8 1
9 1
10 3
11 1
12 1
13 3
14 1
15 1
16 9
17 27
18 1
19 1
20 3
21 1
22 1
23 3
24 1
25 1
26 9
27 1
28 1
29 3
30 1
31 1
32 3
33 1
34 1
35 9
36 1
37 1
38 3
39 1
40 1
41 3
42 1
43 1
44 27
45 81
46 1
47 1
48 3
49 1
50 1
51 3
52 1
53 1
54 9
55 1
56 1
57 3
58 1
59 1
60 3
61 1
62 1
63 9
64 1
65 1
66 3
67 1
68 1
69 3
70 1
71 1
72 27
73 1
74 1
75 3
76 1
77 1
78 3
79 1
80 1
81 9
82 1
83 1
84 3
85 1
86 1
87 3
88 1
89 1
90 9
91 1
92 1
93 3
94 1
95 1
96 3
97 1
98 1
99 27
100 1
101 1
102 3
103 1
104 1
105 3
106 1
107 1
108 9
109 1
110 1
111 3
112 1
113 1
114 3
115 1
116 1
117 9
118 1
119 1
120 3
121 1
122 1
123 3
124 1
125 1
126 81

List of values

[1, 1, 1, 3, 1, 1, 3, 9, 1, 1, 3, 1, 1, 3, 1, 1, 9, 27, 1, 1, 3, 1, 1, 3, 1, 1, 9, 1, 1, 3, 1, 1, 3, 1, 1, 9, 1, 1, 3, 1, 1, 3, 1, 1, 27, 81, 1, 1, 3, 1, 1, 3, 1, 1, 9, 1, 1, 3, 1, 1, 3, 1, 1, 9, 1, 1, 3, 1, 1, 3, 1, 1, 27, 1, 1, 3, 1, 1, 3, 1, 1, 9, 1, 1, 3, 1, 1, 3, 1, 1, 9, 1, 1, 3, 1, 1, 3, 1, 1, 27, 1, 1, 3, 1, 1, 3, 1, 1, 9, 1, 1, 3, 1, 1, 3, 1, 1, 9, 1, 1, 3, 1, 1, 3, 1, 1, 81]