A196059 - cp's OEIS frontend

A196059 Triangle read by rows: T(n,k) is the number of pairs of nodes at distance k in the rooted tree having Matula-Goebel number n (n>=2).

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

[1, 2, 1, 2, 1, 3, 2, 1, 3, 2, 1, 3, 3, 3, 3, 4, 3, 2, 1, 4, 3, 2, 1, 4, 3, 2, 1, 4, 4, 2, 4, 4, 2, 4, 4, 2, 5, 4, 3, 2, 1, 4, 6, 4, 4, 2, 5, 5, 4, 1, 4, 6, 5, 5, 3, 2, 5, 5, 3, 2, 5, 4, 3, 2, 1, 5, 5, 4, 1, 5, 7, 3, 6, 5, 4, 3, 2, 1, 5, 5, 4, 1, 6, 6, 6, 3, 5, 6, 4, 5, 5, 3, 2, 6, 6, 5, 3, 1, 5, 4, 3, 2, 1, 5, 10, 6, 5, 4, 3, 2, 1, 5, 5, 3, 2, 6, 6, 4, 3, 2]

cp's OEIS Frontend

A196059 Triangle read by rows: T(n,k) is the number of pairs of nodes at distance k in the rooted tree having Matula-Goebel number n (n>=2).

Table of values

List of values

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

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

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