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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.

A323727 Number of 1's required to build n using +, -, *, ^ and tetration.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 5
7 6
8 5
9 5
10 6
11 7
12 7
13 8
14 7
15 6
16 5
17 6
18 7
19 8
20 8
21 9
22 9
23 9
24 8
25 7
26 6
27 5
28 6
29 7
30 8
31 8
32 7
33 8
34 9
35 8
36 7
37 8
38 9
39 10
40 10
41 11
42 11
43 10
44 11
45 10
46 10
47 9
48 8
49 8
50 9
51 10
52 9
53 8
54 7
55 8
56 9
57 10
58 10
59 11
60 11
61 10
62 9
63 8
64 7
65 8
66 9
67 10
68 11
69 11
70 10
71 10
72 9
73 10
74 10
75 10
76 11
77 11
78 10
79 9

List of values

[1, 2, 3, 4, 5, 5, 6, 5, 5, 6, 7, 7, 8, 7, 6, 5, 6, 7, 8, 8, 9, 9, 9, 8, 7, 6, 5, 6, 7, 8, 8, 7, 8, 9, 8, 7, 8, 9, 10, 10, 11, 11, 10, 11, 10, 10, 9, 8, 8, 9, 10, 9, 8, 7, 8, 9, 10, 10, 11, 11, 10, 9, 8, 7, 8, 9, 10, 11, 11, 10, 10, 9, 10, 10, 10, 11, 11, 10, 9]

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