A342770 - cp's OEIS frontend

A342770 T(n,k) is the number of rooted plane binary forests with n nodes and k trees: triangle read by rows.

n	a(n)
0	1
1	0
2	1
3	0
4	0
5	1
6	0
7	1
8	0
9	1
10	0
11	0
12	1
13	0
14	1
15	0
16	2
17	0
18	1
19	0
20	1
21	0
22	0
23	3
24	0
25	1
26	0
27	1
28	0
29	5
30	0
31	3
32	0
33	1
34	0
35	1
36	0
37	0
38	7
39	0
40	3
41	0
42	1
43	0
44	1
45	0
46	14
47	0
48	8
49	0
50	3
51	0
52	1
53	0
54	1
55	0
56	0
57	22
58	0
59	8
60	0
61	3
62	0
63	1
64	0
65	1
66	0
67	42
68	0
69	24
70	0
71	8
72	0
73	3
74	0
75	1
76	0
77	1
78	0
79	0
80	66
81	0
82	25
83	0
84	8
85	0

[1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 2, 0, 1, 0, 1, 0, 0, 3, 0, 1, 0, 1, 0, 5, 0, 3, 0, 1, 0, 1, 0, 0, 7, 0, 3, 0, 1, 0, 1, 0, 14, 0, 8, 0, 3, 0, 1, 0, 1, 0, 0, 22, 0, 8, 0, 3, 0, 1, 0, 1, 0, 42, 0, 24, 0, 8, 0, 3, 0, 1, 0, 1, 0, 0, 66, 0, 25, 0, 8, 0]

cp's OEIS Frontend

A342770 T(n,k) is the number of rooted plane binary forests with n nodes and k trees: triangle read by rows.

Table of values

List of values

n	a(n)
0	1
1	0
2	1
3	0
4	0
5	1
6	0
7	1
8	0
9	1
10	0
11	0
12	1
13	0
14	1
15	0
16	2
17	0
18	1
19	0
20	1
21	0
22	0
23	3
24	0
25	1
26	0
27	1
28	0
29	5
30	0
31	3
32	0
33	1
34	0
35	1
36	0
37	0
38	7
39	0
40	3
41	0
42	1
43	0
44	1
45	0
46	14
47	0
48	8
49	0
50	3
51	0
52	1
53	0
54	1
55	0
56	0
57	22
58	0
59	8
60	0
61	3
62	0
63	1
64	0
65	1
66	0
67	42
68	0
69	24
70	0
71	8
72	0
73	3
74	0
75	1
76	0
77	1
78	0
79	0
80	66
81	0
82	25
83	0
84	8
85	0

n	a(n)
0	1
1	0
2	1
3	0
4	0
5	1
6	0
7	1
8	0
9	1
10	0
11	0
12	1
13	0
14	1
15	0
16	2
17	0
18	1
19	0
20	1
21	0
22	0
23	3
24	0
25	1
26	0
27	1
28	0
29	5
30	0
31	3
32	0
33	1
34	0
35	1
36	0
37	0
38	7
39	0
40	3
41	0
42	1
43	0
44	1
45	0
46	14
47	0
48	8
49	0
50	3
51	0
52	1
53	0
54	1
55	0
56	0
57	22
58	0
59	8
60	0
61	3
62	0
63	1
64	0
65	1
66	0
67	42
68	0
69	24
70	0
71	8
72	0
73	3
74	0
75	1
76	0
77	1
78	0
79	0
80	66
81	0
82	25
83	0
84	8
85	0

n	a(n)
0	1
1	0
2	1
3	0
4	0
5	1
6	0
7	1
8	0
9	1
10	0
11	0
12	1
13	0
14	1
15	0
16	2
17	0
18	1
19	0
20	1
21	0
22	0
23	3
24	0
25	1
26	0
27	1
28	0
29	5
30	0
31	3
32	0
33	1
34	0
35	1
36	0
37	0
38	7
39	0
40	3
41	0
42	1
43	0
44	1
45	0
46	14
47	0
48	8
49	0
50	3
51	0
52	1
53	0
54	1
55	0
56	0
57	22
58	0
59	8
60	0
61	3
62	0
63	1
64	0
65	1
66	0
67	42
68	0
69	24
70	0
71	8
72	0
73	3
74	0
75	1
76	0
77	1
78	0
79	0
80	66
81	0
82	25
83	0
84	8
85	0