A347421 - cp's OEIS frontend

A347421 Numbers k such that the product of the first k semiprimes is divisible by the sum of the first k semiprimes.

n	a(n)
1	1
2	9
3	19
4	29
5	30
6	31
7	32
8	33
9	35
10	36
11	40
12	44
13	45
14	46
15	47
16	51
17	55
18	57
19	64
20	67
21	70
22	71
23	72
24	74
25	81
26	83
27	84
28	92
29	94
30	95
31	96
32	97
33	103
34	104
35	105
36	107
37	108
38	109
39	113
40	116
41	118
42	124
43	125
44	127
45	130
46	131
47	132
48	133
49	136
50	138
51	140
52	142
53	144
54	158
55	159
56	160
57	167
58	177
59	182
60	184
61	188
62	191
63	196
64	202
65	203
66	206

[1, 9, 19, 29, 30, 31, 32, 33, 35, 36, 40, 44, 45, 46, 47, 51, 55, 57, 64, 67, 70, 71, 72, 74, 81, 83, 84, 92, 94, 95, 96, 97, 103, 104, 105, 107, 108, 109, 113, 116, 118, 124, 125, 127, 130, 131, 132, 133, 136, 138, 140, 142, 144, 158, 159, 160, 167, 177, 182, 184, 188, 191, 196, 202, 203, 206]

cp's OEIS Frontend

A347421 Numbers k such that the product of the first k semiprimes is divisible by the sum of the first k semiprimes.

Table of values

List of values

n	a(n)
1	1
2	9
3	19
4	29
5	30
6	31
7	32
8	33
9	35
10	36
11	40
12	44
13	45
14	46
15	47
16	51
17	55
18	57
19	64
20	67
21	70
22	71
23	72
24	74
25	81
26	83
27	84
28	92
29	94
30	95
31	96
32	97
33	103
34	104
35	105
36	107
37	108
38	109
39	113
40	116
41	118
42	124
43	125
44	127
45	130
46	131
47	132
48	133
49	136
50	138
51	140
52	142
53	144
54	158
55	159
56	160
57	167
58	177
59	182
60	184
61	188
62	191
63	196
64	202
65	203
66	206

n	a(n)
1	1
2	9
3	19
4	29
5	30
6	31
7	32
8	33
9	35
10	36
11	40
12	44
13	45
14	46
15	47
16	51
17	55
18	57
19	64
20	67
21	70
22	71
23	72
24	74
25	81
26	83
27	84
28	92
29	94
30	95
31	96
32	97
33	103
34	104
35	105
36	107
37	108
38	109
39	113
40	116
41	118
42	124
43	125
44	127
45	130
46	131
47	132
48	133
49	136
50	138
51	140
52	142
53	144
54	158
55	159
56	160
57	167
58	177
59	182
60	184
61	188
62	191
63	196
64	202
65	203
66	206

n	a(n)
1	1
2	9
3	19
4	29
5	30
6	31
7	32
8	33
9	35
10	36
11	40
12	44
13	45
14	46
15	47
16	51
17	55
18	57
19	64
20	67
21	70
22	71
23	72
24	74
25	81
26	83
27	84
28	92
29	94
30	95
31	96
32	97
33	103
34	104
35	105
36	107
37	108
38	109
39	113
40	116
41	118
42	124
43	125
44	127
45	130
46	131
47	132
48	133
49	136
50	138
51	140
52	142
53	144
54	158
55	159
56	160
57	167
58	177
59	182
60	184
61	188
62	191
63	196
64	202
65	203
66	206