A180634 - cp's OEIS frontend

A180634 Numbers n such that the discriminant of the n-th cyclotomic polynomial is a square.

n	a(n)
1	1
2	2
3	8
4	12
5	15
6	16
7	20
8	21
9	24
10	28
11	30
12	32
13	33
14	35
15	36
16	39
17	40
18	42
19	44
20	45
21	48
22	51
23	52
24	55
25	56
26	57
27	60
28	63
29	64
30	65
31	66
32	68
33	69
34	70
35	72
36	75
37	76
38	77
39	78
40	80
41	84
42	85
43	87
44	88
45	90
46	91
47	92
48	93
49	95
50	96
51	99
52	100

[1, 2, 8, 12, 15, 16, 20, 21, 24, 28, 30, 32, 33, 35, 36, 39, 40, 42, 44, 45, 48, 51, 52, 55, 56, 57, 60, 63, 64, 65, 66, 68, 69, 70, 72, 75, 76, 77, 78, 80, 84, 85, 87, 88, 90, 91, 92, 93, 95, 96, 99, 100]

cp's OEIS Frontend

A180634 Numbers n such that the discriminant of the n-th cyclotomic polynomial is a square.

Table of values

List of values

n	a(n)
1	1
2	2
3	8
4	12
5	15
6	16
7	20
8	21
9	24
10	28
11	30
12	32
13	33
14	35
15	36
16	39
17	40
18	42
19	44
20	45
21	48
22	51
23	52
24	55
25	56
26	57
27	60
28	63
29	64
30	65
31	66
32	68
33	69
34	70
35	72
36	75
37	76
38	77
39	78
40	80
41	84
42	85
43	87
44	88
45	90
46	91
47	92
48	93
49	95
50	96
51	99
52	100

n	a(n)
1	1
2	2
3	8
4	12
5	15
6	16
7	20
8	21
9	24
10	28
11	30
12	32
13	33
14	35
15	36
16	39
17	40
18	42
19	44
20	45
21	48
22	51
23	52
24	55
25	56
26	57
27	60
28	63
29	64
30	65
31	66
32	68
33	69
34	70
35	72
36	75
37	76
38	77
39	78
40	80
41	84
42	85
43	87
44	88
45	90
46	91
47	92
48	93
49	95
50	96
51	99
52	100

n	a(n)
1	1
2	2
3	8
4	12
5	15
6	16
7	20
8	21
9	24
10	28
11	30
12	32
13	33
14	35
15	36
16	39
17	40
18	42
19	44
20	45
21	48
22	51
23	52
24	55
25	56
26	57
27	60
28	63
29	64
30	65
31	66
32	68
33	69
34	70
35	72
36	75
37	76
38	77
39	78
40	80
41	84
42	85
43	87
44	88
45	90
46	91
47	92
48	93
49	95
50	96
51	99
52	100