A072796 - cp's OEIS frontend

A072796 Self-inverse permutation of natural numbers induced by the Catalan bijection swapping the two leftmost subtrees in the general tree context of the parenthesizations encoded by A014486. See illustrations in the comments.

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

[0, 1, 2, 3, 4, 6, 5, 7, 8, 9, 10, 14, 16, 19, 11, 15, 12, 17, 18, 13, 20, 21, 22, 23, 24, 25, 26, 27, 37, 38, 42, 44, 47, 51, 53, 56, 60, 28, 29, 39, 43, 52, 30, 40, 31, 45, 46, 32, 48, 49, 50, 33, 41, 34, 54, 55, 35, 57, 58, 59, 36, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71]

cp's OEIS Frontend

A072796 Self-inverse permutation of natural numbers induced by the Catalan bijection swapping the two leftmost subtrees in the general tree context of the parenthesizations encoded by A014486. See illustrations in the comments.

Table of values

List of values

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

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

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