A054430 - cp's OEIS frontend

A054430 Simple self-inverse permutation of natural numbers: List each clump of phi(n) numbers (starting from phi(2) = 1) in reverse order.

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

[1, 3, 2, 5, 4, 9, 8, 7, 6, 11, 10, 17, 16, 15, 14, 13, 12, 21, 20, 19, 18, 27, 26, 25, 24, 23, 22, 31, 30, 29, 28, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 45, 44, 43, 42, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 63, 62, 61, 60, 59, 58, 71, 70, 69, 68, 67, 66, 65, 64, 79]

cp's OEIS Frontend

A054430 Simple self-inverse permutation of natural numbers: List each clump of phi(n) numbers (starting from phi(2) = 1) in reverse order.

Table of values

List of values

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

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

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