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.

A078627 Write n in binary; repeatedly sum the "digits" until reaching 1; a(n) = 1 + number of steps required.

Table of values

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

List of values

[1, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 3, 2, 3, 3, 4, 3, 4, 4, 3, 3, 4, 4, 3, 4, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 3, 3, 4, 4, 3, 4, 3, 3, 4, 3, 4, 4, 3, 4, 3, 3, 4, 4, 3, 3, 4, 3, 4, 4, 4, 2, 3, 3, 4, 3, 4, 4, 3, 3, 4, 4, 3, 4, 3, 3, 4, 3, 4, 4, 3, 4, 3, 3, 4, 4, 3, 3, 4, 3, 4, 4, 4, 3, 4, 4, 3, 4, 3, 3, 4, 4, 3]