A073346 - cp's OEIS frontend

A073346 Table T(n,k) (listed antidiagonalwise in order T(0,0), T(1,0), T(0,1), T(2,0), T(1,1), ...) giving the number of rooted plane binary trees of size n and "contracted height" k.

n	a(n)
0	1
1	1
2	0
3	0
4	0
5	0
6	1
7	2
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	2
17	4
18	0
19	0
20	0
21	0
22	2
23	4
24	0
25	0
26	0
27	0
28	1
29	0
30	8
31	8
32	0
33	0
34	0
35	0
36	0
37	0
38	12
39	16
40	0
41	0
42	0
43	0
44	0
45	0
46	2
47	12
48	40
49	16
50	0
51	0
52	0
53	0
54	0
55	0
56	2
57	12
58	80
59	48
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	12
69	136
70	144
71	32
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	2
80	20
81	224
82	384
83	128
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	16

[1, 1, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 0, 0, 0, 0, 2, 4, 0, 0, 0, 0, 1, 0, 8, 8, 0, 0, 0, 0, 0, 0, 12, 16, 0, 0, 0, 0, 0, 0, 2, 12, 40, 16, 0, 0, 0, 0, 0, 0, 2, 12, 80, 48, 0, 0, 0, 0, 0, 0, 0, 0, 12, 136, 144, 32, 0, 0, 0, 0, 0, 0, 0, 2, 20, 224, 384, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16]

cp's OEIS Frontend

A073346 Table T(n,k) (listed antidiagonalwise in order T(0,0), T(1,0), T(0,1), T(2,0), T(1,1), ...) giving the number of rooted plane binary trees of size n and "contracted height" k.

Table of values

List of values

n	a(n)
0	1
1	1
2	0
3	0
4	0
5	0
6	1
7	2
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	2
17	4
18	0
19	0
20	0
21	0
22	2
23	4
24	0
25	0
26	0
27	0
28	1
29	0
30	8
31	8
32	0
33	0
34	0
35	0
36	0
37	0
38	12
39	16
40	0
41	0
42	0
43	0
44	0
45	0
46	2
47	12
48	40
49	16
50	0
51	0
52	0
53	0
54	0
55	0
56	2
57	12
58	80
59	48
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	12
69	136
70	144
71	32
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	2
80	20
81	224
82	384
83	128
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	16

n	a(n)
0	1
1	1
2	0
3	0
4	0
5	0
6	1
7	2
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	2
17	4
18	0
19	0
20	0
21	0
22	2
23	4
24	0
25	0
26	0
27	0
28	1
29	0
30	8
31	8
32	0
33	0
34	0
35	0
36	0
37	0
38	12
39	16
40	0
41	0
42	0
43	0
44	0
45	0
46	2
47	12
48	40
49	16
50	0
51	0
52	0
53	0
54	0
55	0
56	2
57	12
58	80
59	48
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	12
69	136
70	144
71	32
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	2
80	20
81	224
82	384
83	128
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	16

n	a(n)
0	1
1	1
2	0
3	0
4	0
5	0
6	1
7	2
8	0
9	0
10	0
11	0
12	0
13	0
14	0
15	0
16	2
17	4
18	0
19	0
20	0
21	0
22	2
23	4
24	0
25	0
26	0
27	0
28	1
29	0
30	8
31	8
32	0
33	0
34	0
35	0
36	0
37	0
38	12
39	16
40	0
41	0
42	0
43	0
44	0
45	0
46	2
47	12
48	40
49	16
50	0
51	0
52	0
53	0
54	0
55	0
56	2
57	12
58	80
59	48
60	0
61	0
62	0
63	0
64	0
65	0
66	0
67	0
68	12
69	136
70	144
71	32
72	0
73	0
74	0
75	0
76	0
77	0
78	0
79	2
80	20
81	224
82	384
83	128
84	0
85	0
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	16