A347690 - cp's OEIS frontend

A347690 Values of k such that (product of first k squarefree numbers) / (sum of first k squarefree numbers) is an integer.

n	a(n)
1	1
2	3
3	8
4	10
5	12
6	14
7	16
8	21
9	22
10	24
11	30
12	31
13	34
14	36
15	37
16	38
17	39
18	42
19	43
20	46
21	51
22	52
23	55
24	59
25	60
26	61
27	62
28	66
29	67
30	68
31	72
32	73
33	75
34	77
35	78
36	82
37	83
38	87
39	91
40	93
41	96
42	97
43	98
44	99
45	101
46	102
47	105
48	110
49	115
50	121
51	124
52	125
53	129
54	135
55	136
56	139
57	140
58	143
59	145
60	147
61	151

[1, 3, 8, 10, 12, 14, 16, 21, 22, 24, 30, 31, 34, 36, 37, 38, 39, 42, 43, 46, 51, 52, 55, 59, 60, 61, 62, 66, 67, 68, 72, 73, 75, 77, 78, 82, 83, 87, 91, 93, 96, 97, 98, 99, 101, 102, 105, 110, 115, 121, 124, 125, 129, 135, 136, 139, 140, 143, 145, 147, 151]

cp's OEIS Frontend

A347690 Values of k such that (product of first k squarefree numbers) / (sum of first k squarefree numbers) is an integer.

Table of values

List of values

n	a(n)
1	1
2	3
3	8
4	10
5	12
6	14
7	16
8	21
9	22
10	24
11	30
12	31
13	34
14	36
15	37
16	38
17	39
18	42
19	43
20	46
21	51
22	52
23	55
24	59
25	60
26	61
27	62
28	66
29	67
30	68
31	72
32	73
33	75
34	77
35	78
36	82
37	83
38	87
39	91
40	93
41	96
42	97
43	98
44	99
45	101
46	102
47	105
48	110
49	115
50	121
51	124
52	125
53	129
54	135
55	136
56	139
57	140
58	143
59	145
60	147
61	151

n	a(n)
1	1
2	3
3	8
4	10
5	12
6	14
7	16
8	21
9	22
10	24
11	30
12	31
13	34
14	36
15	37
16	38
17	39
18	42
19	43
20	46
21	51
22	52
23	55
24	59
25	60
26	61
27	62
28	66
29	67
30	68
31	72
32	73
33	75
34	77
35	78
36	82
37	83
38	87
39	91
40	93
41	96
42	97
43	98
44	99
45	101
46	102
47	105
48	110
49	115
50	121
51	124
52	125
53	129
54	135
55	136
56	139
57	140
58	143
59	145
60	147
61	151

n	a(n)
1	1
2	3
3	8
4	10
5	12
6	14
7	16
8	21
9	22
10	24
11	30
12	31
13	34
14	36
15	37
16	38
17	39
18	42
19	43
20	46
21	51
22	52
23	55
24	59
25	60
26	61
27	62
28	66
29	67
30	68
31	72
32	73
33	75
34	77
35	78
36	82
37	83
38	87
39	91
40	93
41	96
42	97
43	98
44	99
45	101
46	102
47	105
48	110
49	115
50	121
51	124
52	125
53	129
54	135
55	136
56	139
57	140
58	143
59	145
60	147
61	151