A091430 - cp's OEIS frontend

A091430 Number of Hamiltonian symmetric trivalent (or cubic) connected graphs on 2n nodes (the Foster census).

n	a(n)
1	0
2	1
3	1
4	1
5	0
6	0
7	1
8	1
9	1
10	2
11	0
12	1
13	1
14	0
15	1
16	1
17	0
18	0
19	1
20	1
21	1
22	0
23	0
24	1
25	1
26	0
27	1
28	3
29	0
30	1
31	1
32	1
33	0
34	0
35	0
36	1
37	1
38	0
39	1
40	1
41	0
42	1
43	1
44	0
45	1
46	0
47	0
48	2
49	2
50	0
51	1
52	1
53	0
54	1
55	1
56	3
57	1
58	0
59	0
60	2
61	1
62	0
63	1
64	2
65	0
66	0
67	1
68	0
69	0
70	0
71	0
72	2
73	1
74	0
75	1
76	1
77	0
78	0
79	1
80	0
81	3
82	0
83	0
84	6
85	0
86	0
87	0
88	0
89	0
90	0
91	4
92	0
93	1
94	0
95	0
96	3
97	1
98	0
99	0
100	1
101	0
102	1
103	1
104	1
105	0
106	0
107	0
108	3
109	1
110	3
111	1
112	3
113	0
114	0
115	0
116	0
117	2
118	0
119	0
120	3
121	1
122	0
123	0
124	1
125	1
126	0
127	1
128	4
129	1
130	0
131	0
132	0
133	2
134	0
135	0
136	0
137	0
138	0
139	1
140	0
141	0
142	0
143	0
144	2
145	0
146	0
147	2
148	1
149	0
150	0
151	1

[0, 1, 1, 1, 0, 0, 1, 1, 1, 2, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 3, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 2, 2, 0, 1, 1, 0, 1, 1, 3, 1, 0, 0, 2, 1, 0, 1, 2, 0, 0, 1, 0, 0, 0, 0, 2, 1, 0, 1, 1, 0, 0, 1, 0, 3, 0, 0, 6, 0, 0, 0, 0, 0, 0, 4, 0, 1, 0, 0, 3, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 3, 1, 3, 1, 3, 0, 0, 0, 0, 2, 0, 0, 3, 1, 0, 0, 1, 1, 0, 1, 4, 1, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 2, 0, 0, 2, 1, 0, 0, 1]

cp's OEIS Frontend

A091430 Number of Hamiltonian symmetric trivalent (or cubic) connected graphs on 2n nodes (the Foster census).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	0
6	0
7	1
8	1
9	1
10	2
11	0
12	1
13	1
14	0
15	1
16	1
17	0
18	0
19	1
20	1
21	1
22	0
23	0
24	1
25	1
26	0
27	1
28	3
29	0
30	1
31	1
32	1
33	0
34	0
35	0
36	1
37	1
38	0
39	1
40	1
41	0
42	1
43	1
44	0
45	1
46	0
47	0
48	2
49	2
50	0
51	1
52	1
53	0
54	1
55	1
56	3
57	1
58	0
59	0
60	2
61	1
62	0
63	1
64	2
65	0
66	0
67	1
68	0
69	0
70	0
71	0
72	2
73	1
74	0
75	1
76	1
77	0
78	0
79	1
80	0
81	3
82	0
83	0
84	6
85	0
86	0
87	0
88	0
89	0
90	0
91	4
92	0
93	1
94	0
95	0
96	3
97	1
98	0
99	0
100	1
101	0
102	1
103	1
104	1
105	0
106	0
107	0
108	3
109	1
110	3
111	1
112	3
113	0
114	0
115	0
116	0
117	2
118	0
119	0
120	3
121	1
122	0
123	0
124	1
125	1
126	0
127	1
128	4
129	1
130	0
131	0
132	0
133	2
134	0
135	0
136	0
137	0
138	0
139	1
140	0
141	0
142	0
143	0
144	2
145	0
146	0
147	2
148	1
149	0
150	0
151	1

n	a(n)
1	0
2	1
3	1
4	1
5	0
6	0
7	1
8	1
9	1
10	2
11	0
12	1
13	1
14	0
15	1
16	1
17	0
18	0
19	1
20	1
21	1
22	0
23	0
24	1
25	1
26	0
27	1
28	3
29	0
30	1
31	1
32	1
33	0
34	0
35	0
36	1
37	1
38	0
39	1
40	1
41	0
42	1
43	1
44	0
45	1
46	0
47	0
48	2
49	2
50	0
51	1
52	1
53	0
54	1
55	1
56	3
57	1
58	0
59	0
60	2
61	1
62	0
63	1
64	2
65	0
66	0
67	1
68	0
69	0
70	0
71	0
72	2
73	1
74	0
75	1
76	1
77	0
78	0
79	1
80	0
81	3
82	0
83	0
84	6
85	0
86	0
87	0
88	0
89	0
90	0
91	4
92	0
93	1
94	0
95	0
96	3
97	1
98	0
99	0
100	1
101	0
102	1
103	1
104	1
105	0
106	0
107	0
108	3
109	1
110	3
111	1
112	3
113	0
114	0
115	0
116	0
117	2
118	0
119	0
120	3
121	1
122	0
123	0
124	1
125	1
126	0
127	1
128	4
129	1
130	0
131	0
132	0
133	2
134	0
135	0
136	0
137	0
138	0
139	1
140	0
141	0
142	0
143	0
144	2
145	0
146	0
147	2
148	1
149	0
150	0
151	1

n	a(n)
1	0
2	1
3	1
4	1
5	0
6	0
7	1
8	1
9	1
10	2
11	0
12	1
13	1
14	0
15	1
16	1
17	0
18	0
19	1
20	1
21	1
22	0
23	0
24	1
25	1
26	0
27	1
28	3
29	0
30	1
31	1
32	1
33	0
34	0
35	0
36	1
37	1
38	0
39	1
40	1
41	0
42	1
43	1
44	0
45	1
46	0
47	0
48	2
49	2
50	0
51	1
52	1
53	0
54	1
55	1
56	3
57	1
58	0
59	0
60	2
61	1
62	0
63	1
64	2
65	0
66	0
67	1
68	0
69	0
70	0
71	0
72	2
73	1
74	0
75	1
76	1
77	0
78	0
79	1
80	0
81	3
82	0
83	0
84	6
85	0
86	0
87	0
88	0
89	0
90	0
91	4
92	0
93	1
94	0
95	0
96	3
97	1
98	0
99	0
100	1
101	0
102	1
103	1
104	1
105	0
106	0
107	0
108	3
109	1
110	3
111	1
112	3
113	0
114	0
115	0
116	0
117	2
118	0
119	0
120	3
121	1
122	0
123	0
124	1
125	1
126	0
127	1
128	4
129	1
130	0
131	0
132	0
133	2
134	0
135	0
136	0
137	0
138	0
139	1
140	0
141	0
142	0
143	0
144	2
145	0
146	0
147	2
148	1
149	0
150	0
151	1