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.

A364528 Number of 1's required to build -n using +, -, *, and parentheses.

Table of values

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

List of values

[3, 4, 5, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 11, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 13, 12, 12, 12, 12, 12, 13, 13, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 14, 13, 13, 13, 14, 13, 14, 13, 13]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.