A072795 - cp's OEIS frontend

A072795 A014486-indices of the plane binary trees AND plane general trees whose left subtree is just a stick: \. thus corresponding to the parenthesizations whose first element (of the top-level list) is an empty parenthesization: ().

n	a(n)
0	1
1	2
2	4
3	5
4	9
5	10
6	11
7	12
8	13
9	23
10	24
11	25
12	26
13	27
14	28
15	29
16	30
17	31
18	32
19	33
20	34
21	35
22	36
23	65
24	66
25	67
26	68
27	69
28	70
29	71
30	72
31	73
32	74
33	75
34	76
35	77
36	78
37	79
38	80
39	81
40	82
41	83
42	84
43	85
44	86
45	87
46	88
47	89
48	90
49	91
50	92
51	93
52	94
53	95
54	96
55	97
56	98
57	99
58	100
59	101
60	102
61	103
62	104
63	105
64	106
65	197
66	198
67	199

[1, 2, 4, 5, 9, 10, 11, 12, 13, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 197, 198, 199]

cp's OEIS Frontend

A072795 A014486-indices of the plane binary trees AND plane general trees whose left subtree is just a stick: \. thus corresponding to the parenthesizations whose first element (of the top-level list) is an empty parenthesization: ().

Table of values

List of values

n	a(n)
0	1
1	2
2	4
3	5
4	9
5	10
6	11
7	12
8	13
9	23
10	24
11	25
12	26
13	27
14	28
15	29
16	30
17	31
18	32
19	33
20	34
21	35
22	36
23	65
24	66
25	67
26	68
27	69
28	70
29	71
30	72
31	73
32	74
33	75
34	76
35	77
36	78
37	79
38	80
39	81
40	82
41	83
42	84
43	85
44	86
45	87
46	88
47	89
48	90
49	91
50	92
51	93
52	94
53	95
54	96
55	97
56	98
57	99
58	100
59	101
60	102
61	103
62	104
63	105
64	106
65	197
66	198
67	199

n	a(n)
0	1
1	2
2	4
3	5
4	9
5	10
6	11
7	12
8	13
9	23
10	24
11	25
12	26
13	27
14	28
15	29
16	30
17	31
18	32
19	33
20	34
21	35
22	36
23	65
24	66
25	67
26	68
27	69
28	70
29	71
30	72
31	73
32	74
33	75
34	76
35	77
36	78
37	79
38	80
39	81
40	82
41	83
42	84
43	85
44	86
45	87
46	88
47	89
48	90
49	91
50	92
51	93
52	94
53	95
54	96
55	97
56	98
57	99
58	100
59	101
60	102
61	103
62	104
63	105
64	106
65	197
66	198
67	199

n	a(n)
0	1
1	2
2	4
3	5
4	9
5	10
6	11
7	12
8	13
9	23
10	24
11	25
12	26
13	27
14	28
15	29
16	30
17	31
18	32
19	33
20	34
21	35
22	36
23	65
24	66
25	67
26	68
27	69
28	70
29	71
30	72
31	73
32	74
33	75
34	76
35	77
36	78
37	79
38	80
39	81
40	82
41	83
42	84
43	85
44	86
45	87
46	88
47	89
48	90
49	91
50	92
51	93
52	94
53	95
54	96
55	97
56	98
57	99
58	100
59	101
60	102
61	103
62	104
63	105
64	106
65	197
66	198
67	199