A212627 - cp's OEIS frontend

A212627 Irregular triangle read by rows: T(n,k) is the number of maximal independent vertex subsets with k vertices of the rooted tree with Matula-Goebel number n (n>=1, k>=1).

n	a(n)
1	1
2	2
3	1
4	1
5	1
6	1
7	0
8	3
9	0
10	3
11	1
12	0
13	1
14	1
15	0
16	1
17	0
18	3
19	1
20	0
21	3
22	1
23	0
24	3
25	1
26	0
27	1
28	2
29	0
30	1
31	2
32	0
33	1
34	2
35	0
36	1
37	4
38	1
39	0
40	0
41	1
42	0
43	1
44	2
45	0
46	0
47	5
48	1
49	0
50	0
51	1
52	0
53	2
54	1
55	1
56	0
57	2
58	1
59	1
60	0
61	1
62	4
63	0
64	0
65	5
66	0
67	1
68	0
69	2
70	0
71	0
72	6
73	1
74	0
75	0
76	5
77	0
78	0
79	7
80	1
81	0
82	0
83	2
84	1
85	0
86	2
87	1
88	1
89	0
90	0
91	4
92	2
93	0
94	1
95	4
96	1
97	0
98	0
99	0
100	1
101	0
102	0
103	6
104	1
105	0
106	2
107	1
108	1
109	0
110	1
111	1
112	3
113	0
114	0
115	1
116	4
117	0
118	1
119	0
120	2
121	0
122	1
123	0
124	2
125	0
126	0
127	4
128	2
129	0
130	2
131	0
132	1
133	1
134	0
135	0
136	5
137	0
138	0
139	2
140	3
141	0
142	0
143	2
144	1
145	0
146	1
147	1
148	3
149	0
150	0
151	3
152	6

[1, 2, 1, 1, 1, 1, 0, 3, 0, 3, 1, 0, 1, 1, 0, 1, 0, 3, 1, 0, 3, 1, 0, 3, 1, 0, 1, 2, 0, 1, 2, 0, 1, 2, 0, 1, 4, 1, 0, 0, 1, 0, 1, 2, 0, 0, 5, 1, 0, 0, 1, 0, 2, 1, 1, 0, 2, 1, 1, 0, 1, 4, 0, 0, 5, 0, 1, 0, 2, 0, 0, 6, 1, 0, 0, 5, 0, 0, 7, 1, 0, 0, 2, 1, 0, 2, 1, 1, 0, 0, 4, 2, 0, 1, 4, 1, 0, 0, 0, 1, 0, 0, 6, 1, 0, 2, 1, 1, 0, 1, 1, 3, 0, 0, 1, 4, 0, 1, 0, 2, 0, 1, 0, 2, 0, 0, 4, 2, 0, 2, 0, 1, 1, 0, 0, 5, 0, 0, 2, 3, 0, 0, 2, 1, 0, 1, 1, 3, 0, 0, 3, 6]

cp's OEIS Frontend

A212627 Irregular triangle read by rows: T(n,k) is the number of maximal independent vertex subsets with k vertices of the rooted tree with Matula-Goebel number n (n>=1, k>=1).

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	1
5	1
6	1
7	0
8	3
9	0
10	3
11	1
12	0
13	1
14	1
15	0
16	1
17	0
18	3
19	1
20	0
21	3
22	1
23	0
24	3
25	1
26	0
27	1
28	2
29	0
30	1
31	2
32	0
33	1
34	2
35	0
36	1
37	4
38	1
39	0
40	0
41	1
42	0
43	1
44	2
45	0
46	0
47	5
48	1
49	0
50	0
51	1
52	0
53	2
54	1
55	1
56	0
57	2
58	1
59	1
60	0
61	1
62	4
63	0
64	0
65	5
66	0
67	1
68	0
69	2
70	0
71	0
72	6
73	1
74	0
75	0
76	5
77	0
78	0
79	7
80	1
81	0
82	0
83	2
84	1
85	0
86	2
87	1
88	1
89	0
90	0
91	4
92	2
93	0
94	1
95	4
96	1
97	0
98	0
99	0
100	1
101	0
102	0
103	6
104	1
105	0
106	2
107	1
108	1
109	0
110	1
111	1
112	3
113	0
114	0
115	1
116	4
117	0
118	1
119	0
120	2
121	0
122	1
123	0
124	2
125	0
126	0
127	4
128	2
129	0
130	2
131	0
132	1
133	1
134	0
135	0
136	5
137	0
138	0
139	2
140	3
141	0
142	0
143	2
144	1
145	0
146	1
147	1
148	3
149	0
150	0
151	3
152	6

n	a(n)
1	1
2	2
3	1
4	1
5	1
6	1
7	0
8	3
9	0
10	3
11	1
12	0
13	1
14	1
15	0
16	1
17	0
18	3
19	1
20	0
21	3
22	1
23	0
24	3
25	1
26	0
27	1
28	2
29	0
30	1
31	2
32	0
33	1
34	2
35	0
36	1
37	4
38	1
39	0
40	0
41	1
42	0
43	1
44	2
45	0
46	0
47	5
48	1
49	0
50	0
51	1
52	0
53	2
54	1
55	1
56	0
57	2
58	1
59	1
60	0
61	1
62	4
63	0
64	0
65	5
66	0
67	1
68	0
69	2
70	0
71	0
72	6
73	1
74	0
75	0
76	5
77	0
78	0
79	7
80	1
81	0
82	0
83	2
84	1
85	0
86	2
87	1
88	1
89	0
90	0
91	4
92	2
93	0
94	1
95	4
96	1
97	0
98	0
99	0
100	1
101	0
102	0
103	6
104	1
105	0
106	2
107	1
108	1
109	0
110	1
111	1
112	3
113	0
114	0
115	1
116	4
117	0
118	1
119	0
120	2
121	0
122	1
123	0
124	2
125	0
126	0
127	4
128	2
129	0
130	2
131	0
132	1
133	1
134	0
135	0
136	5
137	0
138	0
139	2
140	3
141	0
142	0
143	2
144	1
145	0
146	1
147	1
148	3
149	0
150	0
151	3
152	6

n	a(n)
1	1
2	2
3	1
4	1
5	1
6	1
7	0
8	3
9	0
10	3
11	1
12	0
13	1
14	1
15	0
16	1
17	0
18	3
19	1
20	0
21	3
22	1
23	0
24	3
25	1
26	0
27	1
28	2
29	0
30	1
31	2
32	0
33	1
34	2
35	0
36	1
37	4
38	1
39	0
40	0
41	1
42	0
43	1
44	2
45	0
46	0
47	5
48	1
49	0
50	0
51	1
52	0
53	2
54	1
55	1
56	0
57	2
58	1
59	1
60	0
61	1
62	4
63	0
64	0
65	5
66	0
67	1
68	0
69	2
70	0
71	0
72	6
73	1
74	0
75	0
76	5
77	0
78	0
79	7
80	1
81	0
82	0
83	2
84	1
85	0
86	2
87	1
88	1
89	0
90	0
91	4
92	2
93	0
94	1
95	4
96	1
97	0
98	0
99	0
100	1
101	0
102	0
103	6
104	1
105	0
106	2
107	1
108	1
109	0
110	1
111	1
112	3
113	0
114	0
115	1
116	4
117	0
118	1
119	0
120	2
121	0
122	1
123	0
124	2
125	0
126	0
127	4
128	2
129	0
130	2
131	0
132	1
133	1
134	0
135	0
136	5
137	0
138	0
139	2
140	3
141	0
142	0
143	2
144	1
145	0
146	1
147	1
148	3
149	0
150	0
151	3
152	6