A304365 - cp's OEIS frontend

A304365 Numbers k such that Sum_{d|k, d = 1 or not a perfect power} mu(k/d) is nonzero.

n	a(n)
1	1
2	4
3	9
4	12
5	18
6	20
7	25
8	28
9	36
10	44
11	45
12	49
13	50
14	52
15	60
16	63
17	68
18	72
19	75
20	76
21	84
22	90
23	92
24	98
25	99
26	100
27	108
28	116
29	117
30	121
31	124
32	126
33	132
34	140
35	144
36	147
37	148
38	150
39	153
40	156
41	164
42	169
43	171
44	172
45	175
46	180
47	188
48	196
49	198
50	200
51	204
52	207
53	212
54	216
55	220
56	225
57	228
58	234

[1, 4, 9, 12, 18, 20, 25, 28, 36, 44, 45, 49, 50, 52, 60, 63, 68, 72, 75, 76, 84, 90, 92, 98, 99, 100, 108, 116, 117, 121, 124, 126, 132, 140, 144, 147, 148, 150, 153, 156, 164, 169, 171, 172, 175, 180, 188, 196, 198, 200, 204, 207, 212, 216, 220, 225, 228, 234]

cp's OEIS Frontend

A304365 Numbers k such that Sum_{d|k, d = 1 or not a perfect power} mu(k/d) is nonzero.

Table of values

List of values

n	a(n)
1	1
2	4
3	9
4	12
5	18
6	20
7	25
8	28
9	36
10	44
11	45
12	49
13	50
14	52
15	60
16	63
17	68
18	72
19	75
20	76
21	84
22	90
23	92
24	98
25	99
26	100
27	108
28	116
29	117
30	121
31	124
32	126
33	132
34	140
35	144
36	147
37	148
38	150
39	153
40	156
41	164
42	169
43	171
44	172
45	175
46	180
47	188
48	196
49	198
50	200
51	204
52	207
53	212
54	216
55	220
56	225
57	228
58	234

n	a(n)
1	1
2	4
3	9
4	12
5	18
6	20
7	25
8	28
9	36
10	44
11	45
12	49
13	50
14	52
15	60
16	63
17	68
18	72
19	75
20	76
21	84
22	90
23	92
24	98
25	99
26	100
27	108
28	116
29	117
30	121
31	124
32	126
33	132
34	140
35	144
36	147
37	148
38	150
39	153
40	156
41	164
42	169
43	171
44	172
45	175
46	180
47	188
48	196
49	198
50	200
51	204
52	207
53	212
54	216
55	220
56	225
57	228
58	234

n	a(n)
1	1
2	4
3	9
4	12
5	18
6	20
7	25
8	28
9	36
10	44
11	45
12	49
13	50
14	52
15	60
16	63
17	68
18	72
19	75
20	76
21	84
22	90
23	92
24	98
25	99
26	100
27	108
28	116
29	117
30	121
31	124
32	126
33	132
34	140
35	144
36	147
37	148
38	150
39	153
40	156
41	164
42	169
43	171
44	172
45	175
46	180
47	188
48	196
49	198
50	200
51	204
52	207
53	212
54	216
55	220
56	225
57	228
58	234