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.

A254044 a(1) = 1, for n>1: a(n) = a(A253889(n)) + (1 if n is of the form 3n or 3n+1, otherwise 0).

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 1
6 3
7 3
8 2
9 3
10 2
11 2
12 3
13 2
14 1
15 4
16 4
17 3
18 4
19 5
20 3
21 3
22 3
23 2
24 4
25 3
26 3
27 5
28 3
29 2
30 4
31 5
32 2
33 2
34 5
35 3
36 3
37 4
38 2
39 3
40 3
41 1
42 5
43 4
44 4
45 4
46 5
47 4
48 4
49 4
50 3
51 3
52 4
53 4
54 5
55 5
56 5
57 5
58 4
59 3
60 2
61 3
62 3
63 4
64 4
65 3
66 7
67 4
68 2
69 3
70 3
71 4
72 4
73 3
74 3
75 4
76 4
77 3
78 5
79 5
80 5
81 6
82 5
83 3
84 4
85 5
86 2
87 5
88 4
89 4
90 5
91 5
92 5
93 5
94 5
95 2
96 5
97 7
98 2
99 3
100 4
101 5
102 5
103 6
104 3
105 6
106 5
107 3
108 6
109 3
110 4
111 5
112 5
113 2
114 7
115 5
116 3
117 5
118 2
119 3
120 5
121 7
122 1
123 4
124 6
125 5
126 5
127 3
128 4

List of values

[1, 1, 2, 2, 1, 3, 3, 2, 3, 2, 2, 3, 2, 1, 4, 4, 3, 4, 5, 3, 3, 3, 2, 4, 3, 3, 5, 3, 2, 4, 5, 2, 2, 5, 3, 3, 4, 2, 3, 3, 1, 5, 4, 4, 4, 5, 4, 4, 4, 3, 3, 4, 4, 5, 5, 5, 5, 4, 3, 2, 3, 3, 4, 4, 3, 7, 4, 2, 3, 3, 4, 4, 3, 3, 4, 4, 3, 5, 5, 5, 6, 5, 3, 4, 5, 2, 5, 4, 4, 5, 5, 5, 5, 5, 2, 5, 7, 2, 3, 4, 5, 5, 6, 3, 6, 5, 3, 6, 3, 4, 5, 5, 2, 7, 5, 3, 5, 2, 3, 5, 7, 1, 4, 6, 5, 5, 3, 4]