A053806 - cp's OEIS frontend

A053806 Numbers where a gap begins in the sequence of squarefree numbers (A005117).

n	a(n)
1	4
2	8
3	12
4	16
5	18
6	20
7	24
8	27
9	32
10	36
11	40
12	44
13	48
14	52
15	54
16	56
17	60
18	63
19	68
20	72
21	75
22	80
23	84
24	88
25	90
26	92
27	96
28	98
29	104
30	108
31	112
32	116
33	120
34	124
35	128
36	132
37	135
38	140
39	144
40	147
41	150
42	152
43	156
44	160
45	162
46	164
47	168
48	171
49	175
50	180
51	184
52	188
53	192
54	196
55	198
56	200
57	204
58	207
59	212

[4, 8, 12, 16, 18, 20, 24, 27, 32, 36, 40, 44, 48, 52, 54, 56, 60, 63, 68, 72, 75, 80, 84, 88, 90, 92, 96, 98, 104, 108, 112, 116, 120, 124, 128, 132, 135, 140, 144, 147, 150, 152, 156, 160, 162, 164, 168, 171, 175, 180, 184, 188, 192, 196, 198, 200, 204, 207, 212]

cp's OEIS Frontend

A053806 Numbers where a gap begins in the sequence of squarefree numbers (A005117).

Table of values

List of values

n	a(n)
1	4
2	8
3	12
4	16
5	18
6	20
7	24
8	27
9	32
10	36
11	40
12	44
13	48
14	52
15	54
16	56
17	60
18	63
19	68
20	72
21	75
22	80
23	84
24	88
25	90
26	92
27	96
28	98
29	104
30	108
31	112
32	116
33	120
34	124
35	128
36	132
37	135
38	140
39	144
40	147
41	150
42	152
43	156
44	160
45	162
46	164
47	168
48	171
49	175
50	180
51	184
52	188
53	192
54	196
55	198
56	200
57	204
58	207
59	212

n	a(n)
1	4
2	8
3	12
4	16
5	18
6	20
7	24
8	27
9	32
10	36
11	40
12	44
13	48
14	52
15	54
16	56
17	60
18	63
19	68
20	72
21	75
22	80
23	84
24	88
25	90
26	92
27	96
28	98
29	104
30	108
31	112
32	116
33	120
34	124
35	128
36	132
37	135
38	140
39	144
40	147
41	150
42	152
43	156
44	160
45	162
46	164
47	168
48	171
49	175
50	180
51	184
52	188
53	192
54	196
55	198
56	200
57	204
58	207
59	212

n	a(n)
1	4
2	8
3	12
4	16
5	18
6	20
7	24
8	27
9	32
10	36
11	40
12	44
13	48
14	52
15	54
16	56
17	60
18	63
19	68
20	72
21	75
22	80
23	84
24	88
25	90
26	92
27	96
28	98
29	104
30	108
31	112
32	116
33	120
34	124
35	128
36	132
37	135
38	140
39	144
40	147
41	150
42	152
43	156
44	160
45	162
46	164
47	168
48	171
49	175
50	180
51	184
52	188
53	192
54	196
55	198
56	200
57	204
58	207
59	212