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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.

A267602 Number of unlabeled, connected graphs on n vertices that are prime and have no induced subgraph isomorphic to a bull, a P5 or a P5-bar.

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 1
6 2
7 0
8 2
9 0
10 2
11 0
12 2
13 0
14 2
15 0
16 2
17 0
18 2
19 0
20 2
21 0
22 2
23 0
24 2
25 0
26 2
27 0
28 2
29 0
30 2
31 0
32 2
33 0
34 2
35 0
36 2
37 0
38 2
39 0
40 2
41 0
42 2
43 0
44 2
45 0
46 2
47 0
48 2
49 0
50 2
51 0
52 2
53 0
54 2
55 0
56 2
57 0
58 2
59 0
60 2
61 0
62 2
63 0
64 2
65 0
66 2
67 0
68 2
69 0
70 2
71 0
72 2
73 0
74 2
75 0
76 2
77 0
78 2
79 0
80 2
81 0
82 2
83 0
84 2
85 0
86 2
87 0

List of values

[0, 0, 0, 1, 1, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 0]

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

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