A318407 - cp's OEIS frontend

A318407 Triangle read by rows: T(n,k) is the number of Markov equivalence classes whose skeleton is the caterpillar graph on n nodes that contain precisely k immoralities.

n	a(n)
0	0
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	4
9	1
10	1
11	1
12	5
13	3
14	1
15	1
16	7
17	8
18	3
19	3
20	1
21	8
22	13
23	6
24	4
25	1
26	10
27	23
28	16
29	13
30	6
31	1
32	1
33	11
34	31
35	29
36	19
37	10
38	1
39	1
40	13
41	46
42	59
43	46
44	39
45	13
46	5
47	1
48	14
49	57
50	90
51	75
52	58
53	23
54	6
55	1
56	16
57	77
58	153
59	158
60	147
61	97
62	39
63	15
64	1
65	1
66	17
67	91
68	210
69	248
70	222
71	155
72	62
73	21
74	1

[0, 1, 1, 1, 1, 1, 2, 1, 4, 1, 1, 1, 5, 3, 1, 1, 7, 8, 3, 3, 1, 8, 13, 6, 4, 1, 10, 23, 16, 13, 6, 1, 1, 11, 31, 29, 19, 10, 1, 1, 13, 46, 59, 46, 39, 13, 5, 1, 14, 57, 90, 75, 58, 23, 6, 1, 16, 77, 153, 158, 147, 97, 39, 15, 1, 1, 17, 91, 210, 248, 222, 155, 62, 21, 1]

cp's OEIS Frontend

A318407 Triangle read by rows: T(n,k) is the number of Markov equivalence classes whose skeleton is the caterpillar graph on n nodes that contain precisely k immoralities.

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	4
9	1
10	1
11	1
12	5
13	3
14	1
15	1
16	7
17	8
18	3
19	3
20	1
21	8
22	13
23	6
24	4
25	1
26	10
27	23
28	16
29	13
30	6
31	1
32	1
33	11
34	31
35	29
36	19
37	10
38	1
39	1
40	13
41	46
42	59
43	46
44	39
45	13
46	5
47	1
48	14
49	57
50	90
51	75
52	58
53	23
54	6
55	1
56	16
57	77
58	153
59	158
60	147
61	97
62	39
63	15
64	1
65	1
66	17
67	91
68	210
69	248
70	222
71	155
72	62
73	21
74	1

n	a(n)
0	0
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	4
9	1
10	1
11	1
12	5
13	3
14	1
15	1
16	7
17	8
18	3
19	3
20	1
21	8
22	13
23	6
24	4
25	1
26	10
27	23
28	16
29	13
30	6
31	1
32	1
33	11
34	31
35	29
36	19
37	10
38	1
39	1
40	13
41	46
42	59
43	46
44	39
45	13
46	5
47	1
48	14
49	57
50	90
51	75
52	58
53	23
54	6
55	1
56	16
57	77
58	153
59	158
60	147
61	97
62	39
63	15
64	1
65	1
66	17
67	91
68	210
69	248
70	222
71	155
72	62
73	21
74	1

n	a(n)
0	0
1	1
2	1
3	1
4	1
5	1
6	2
7	1
8	4
9	1
10	1
11	1
12	5
13	3
14	1
15	1
16	7
17	8
18	3
19	3
20	1
21	8
22	13
23	6
24	4
25	1
26	10
27	23
28	16
29	13
30	6
31	1
32	1
33	11
34	31
35	29
36	19
37	10
38	1
39	1
40	13
41	46
42	59
43	46
44	39
45	13
46	5
47	1
48	14
49	57
50	90
51	75
52	58
53	23
54	6
55	1
56	16
57	77
58	153
59	158
60	147
61	97
62	39
63	15
64	1
65	1
66	17
67	91
68	210
69	248
70	222
71	155
72	62
73	21
74	1