A214573 - cp's OEIS frontend

A214573 Irregular triangle read by rows: the (n,k)-entry is the number of vertices with Strahler number k in the rooted tree with Matula-Goebel number n (n>=1, k>=1).

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

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

cp's OEIS Frontend

A214573 Irregular triangle read by rows: the (n,k)-entry is the number of vertices with Strahler number k in 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	3
4	2
5	1
6	4
7	3
8	1
9	2
10	2
11	3
12	1
13	4
14	1
15	4
16	1
17	5
18	4
19	1
20	3
21	2
22	3
23	2
24	5
25	1
26	4
27	1
28	2
29	3
30	5
31	1
32	3
33	2
34	5
35	1
36	4
37	2
38	5
39	1
40	4
41	2
42	5
43	1
44	6
45	1
46	4
47	2
48	6
49	1
50	4
51	2
52	4
53	2
54	6
55	1
56	6
57	5
58	1
59	6
60	1
61	3
62	3
63	5
64	2
65	6
66	1
67	4
68	2
69	4
70	2
71	5
72	2
73	6
74	1
75	3
76	3
77	5
78	2
79	3
80	3
81	6
82	1
83	7
84	1
85	5
86	2
87	5
88	2
89	6
90	1
91	4
92	2
93	1
94	7
95	1
96	4
97	3
98	5
99	2
100	4
101	2
102	7
103	1
104	7
105	1
106	5
107	2
108	5
109	2
110	5
111	2
112	2
113	4
114	7
115	1
116	5
117	2
118	6
119	1
120	6
121	2
122	6
123	1
124	6
125	2
126	7
127	1
128	3
129	3
130	4
131	3
132	6
133	2
134	6
135	2
136	5
137	2
138	7
139	1
140	4
141	3
142	5
143	2

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

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