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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.

A351169 a(n) is the minimum number of vertices of degree 4 over all 4-collapsible graphs with n vertices.

Table of values

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

List of values

[5, 4, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 10, 10, 10, 10, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 14, 14, 14, 14, 15, 15, 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 18, 19, 19, 19, 20, 20, 20, 20, 21, 21, 21, 22, 22, 22]

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

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