A013929 - cp's OEIS frontend

A013929 Numbers that are not squarefree. Numbers that are divisible by a square greater than 1. The complement of A005117.

n	a(n)
1	4
2	8
3	9
4	12
5	16
6	18
7	20
8	24
9	25
10	27
11	28
12	32
13	36
14	40
15	44
16	45
17	48
18	49
19	50
20	52
21	54
22	56
23	60
24	63
25	64
26	68
27	72
28	75
29	76
30	80
31	81
32	84
33	88
34	90
35	92
36	96
37	98
38	99
39	100
40	104
41	108
42	112
43	116
44	117
45	120
46	121
47	124
48	125
49	126
50	128
51	132
52	135
53	136
54	140
55	144
56	147
57	148
58	150
59	152
60	153
61	156
62	160

[4, 8, 9, 12, 16, 18, 20, 24, 25, 27, 28, 32, 36, 40, 44, 45, 48, 49, 50, 52, 54, 56, 60, 63, 64, 68, 72, 75, 76, 80, 81, 84, 88, 90, 92, 96, 98, 99, 100, 104, 108, 112, 116, 117, 120, 121, 124, 125, 126, 128, 132, 135, 136, 140, 144, 147, 148, 150, 152, 153, 156, 160]

cp's OEIS Frontend

A013929 Numbers that are not squarefree. Numbers that are divisible by a square greater than 1. The complement of A005117.

Table of values

List of values

n	a(n)
1	4
2	8
3	9
4	12
5	16
6	18
7	20
8	24
9	25
10	27
11	28
12	32
13	36
14	40
15	44
16	45
17	48
18	49
19	50
20	52
21	54
22	56
23	60
24	63
25	64
26	68
27	72
28	75
29	76
30	80
31	81
32	84
33	88
34	90
35	92
36	96
37	98
38	99
39	100
40	104
41	108
42	112
43	116
44	117
45	120
46	121
47	124
48	125
49	126
50	128
51	132
52	135
53	136
54	140
55	144
56	147
57	148
58	150
59	152
60	153
61	156
62	160

n	a(n)
1	4
2	8
3	9
4	12
5	16
6	18
7	20
8	24
9	25
10	27
11	28
12	32
13	36
14	40
15	44
16	45
17	48
18	49
19	50
20	52
21	54
22	56
23	60
24	63
25	64
26	68
27	72
28	75
29	76
30	80
31	81
32	84
33	88
34	90
35	92
36	96
37	98
38	99
39	100
40	104
41	108
42	112
43	116
44	117
45	120
46	121
47	124
48	125
49	126
50	128
51	132
52	135
53	136
54	140
55	144
56	147
57	148
58	150
59	152
60	153
61	156
62	160

n	a(n)
1	4
2	8
3	9
4	12
5	16
6	18
7	20
8	24
9	25
10	27
11	28
12	32
13	36
14	40
15	44
16	45
17	48
18	49
19	50
20	52
21	54
22	56
23	60
24	63
25	64
26	68
27	72
28	75
29	76
30	80
31	81
32	84
33	88
34	90
35	92
36	96
37	98
38	99
39	100
40	104
41	108
42	112
43	116
44	117
45	120
46	121
47	124
48	125
49	126
50	128
51	132
52	135
53	136
54	140
55	144
56	147
57	148
58	150
59	152
60	153
61	156
62	160