A385822 - cp's OEIS frontend

A385822 Numbers k such that phi(k) is not a perfect square.

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

[3, 4, 6, 7, 9, 11, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 35, 36, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 54, 55, 56, 58, 59, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 75, 77, 78, 79, 80, 81, 82, 83, 84, 86, 87, 88, 89]

cp's OEIS Frontend

A385822 Numbers k such that phi(k) is not a perfect square.

Table of values

List of values

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

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

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