A263342 - cp's OEIS frontend

A263342 Irregular triangle read by rows: T(n,k) is the number of unlabeled graphs with n vertices containing exactly k non-isomorphic induced subgraphs, 1 <= n <= k < A370001(n).

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

[1, 2, 2, 2, 2, 2, 5, 2, 2, 0, 1, 8, 4, 10, 7, 2, 2, 0, 0, 4, 4, 6, 6, 14, 16, 14, 22, 16, 20, 16, 10, 4, 2, 2, 0, 0, 0, 0, 4, 4, 4, 10, 8, 8, 16, 10, 20, 32, 42, 36, 40, 48, 74, 56, 68, 76, 60, 74, 72, 60, 72, 64, 26, 34, 14, 8, 2]

cp's OEIS Frontend

A263342 Irregular triangle read by rows: T(n,k) is the number of unlabeled graphs with n vertices containing exactly k non-isomorphic induced subgraphs, 1 <= n <= k < A370001(n).

Table of values

List of values

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

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

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