A185205 - cp's OEIS frontend

A185205 Triangular array D(n,k) counting disconnected k-regular simple graphs on n vertices with girth at least 5.

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	0
8	1
9	1
10	1
11	0
12	1
13	1
14	1
15	0
16	1
17	1
18	1
19	1
20	0
21	1
22	1
23	1
24	2
25	1
26	0
27	2
28	1
29	1
30	3
31	1
32	0
33	4
34	1
35	1
36	5
37	1
38	0
39	6
40	1
41	1
42	8
43	1
44	0
45	9
46	1
47	1
48	12
49	1
50	1
51	0
52	14
53	0
54	1
55	1
56	17
57	2
58	1
59	0
60	20
61	0
62	1
63	1
64	25
65	12
66	1
67	0
68	29
69	0
70	1
71	1
72	35
73	67
74	1
75	0
76	41
77	0
78	1
79	1
80	49
81	598
82	1
83	0

[0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 2, 1, 0, 2, 1, 1, 3, 1, 0, 4, 1, 1, 5, 1, 0, 6, 1, 1, 8, 1, 0, 9, 1, 1, 12, 1, 1, 0, 14, 0, 1, 1, 17, 2, 1, 0, 20, 0, 1, 1, 25, 12, 1, 0, 29, 0, 1, 1, 35, 67, 1, 0, 41, 0, 1, 1, 49, 598, 1, 0]

cp's OEIS Frontend

A185205 Triangular array D(n,k) counting disconnected k-regular simple graphs on n vertices with girth at least 5.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	0
8	1
9	1
10	1
11	0
12	1
13	1
14	1
15	0
16	1
17	1
18	1
19	1
20	0
21	1
22	1
23	1
24	2
25	1
26	0
27	2
28	1
29	1
30	3
31	1
32	0
33	4
34	1
35	1
36	5
37	1
38	0
39	6
40	1
41	1
42	8
43	1
44	0
45	9
46	1
47	1
48	12
49	1
50	1
51	0
52	14
53	0
54	1
55	1
56	17
57	2
58	1
59	0
60	20
61	0
62	1
63	1
64	25
65	12
66	1
67	0
68	29
69	0
70	1
71	1
72	35
73	67
74	1
75	0
76	41
77	0
78	1
79	1
80	49
81	598
82	1
83	0

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	0
8	1
9	1
10	1
11	0
12	1
13	1
14	1
15	0
16	1
17	1
18	1
19	1
20	0
21	1
22	1
23	1
24	2
25	1
26	0
27	2
28	1
29	1
30	3
31	1
32	0
33	4
34	1
35	1
36	5
37	1
38	0
39	6
40	1
41	1
42	8
43	1
44	0
45	9
46	1
47	1
48	12
49	1
50	1
51	0
52	14
53	0
54	1
55	1
56	17
57	2
58	1
59	0
60	20
61	0
62	1
63	1
64	25
65	12
66	1
67	0
68	29
69	0
70	1
71	1
72	35
73	67
74	1
75	0
76	41
77	0
78	1
79	1
80	49
81	598
82	1
83	0

n	a(n)
1	0
2	1
3	1
4	1
5	1
6	1
7	0
8	1
9	1
10	1
11	0
12	1
13	1
14	1
15	0
16	1
17	1
18	1
19	1
20	0
21	1
22	1
23	1
24	2
25	1
26	0
27	2
28	1
29	1
30	3
31	1
32	0
33	4
34	1
35	1
36	5
37	1
38	0
39	6
40	1
41	1
42	8
43	1
44	0
45	9
46	1
47	1
48	12
49	1
50	1
51	0
52	14
53	0
54	1
55	1
56	17
57	2
58	1
59	0
60	20
61	0
62	1
63	1
64	25
65	12
66	1
67	0
68	29
69	0
70	1
71	1
72	35
73	67
74	1
75	0
76	41
77	0
78	1
79	1
80	49
81	598
82	1
83	0