A163327 - cp's OEIS frontend

A163327 Self-inverse permutation of integers: swap the odd- and even-positioned digits in the ternary expansion of n, then convert back to decimal.

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

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

cp's OEIS Frontend

A163327 Self-inverse permutation of integers: swap the odd- and even-positioned digits in the ternary expansion of n, then convert back to decimal.

Table of values

List of values

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

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

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