A092191 - cp's OEIS frontend

A092191 Numbers n such that sum of n-th and (n+1)-th semiprimes is a semiprime.

n	a(n)
1	1
2	2
3	9
4	12
5	14
6	15
7	16
8	18
9	20
10	23
11	24
12	26
13	30
14	32
15	34
16	35
17	36
18	38
19	43
20	44
21	49
22	50
23	54
24	55
25	56
26	57
27	58
28	61
29	62
30	63
31	66
32	67
33	68
34	69
35	73
36	75
37	80
38	84
39	88
40	91
41	93
42	98
43	99
44	100
45	103
46	107
47	108
48	110
49	112
50	114
51	118
52	119
53	124
54	125
55	128
56	133
57	137
58	138
59	146
60	147
61	150
62	151
63	153

[1, 2, 9, 12, 14, 15, 16, 18, 20, 23, 24, 26, 30, 32, 34, 35, 36, 38, 43, 44, 49, 50, 54, 55, 56, 57, 58, 61, 62, 63, 66, 67, 68, 69, 73, 75, 80, 84, 88, 91, 93, 98, 99, 100, 103, 107, 108, 110, 112, 114, 118, 119, 124, 125, 128, 133, 137, 138, 146, 147, 150, 151, 153]

cp's OEIS Frontend

A092191 Numbers n such that sum of n-th and (n+1)-th semiprimes is a semiprime.

Table of values

List of values

n	a(n)
1	1
2	2
3	9
4	12
5	14
6	15
7	16
8	18
9	20
10	23
11	24
12	26
13	30
14	32
15	34
16	35
17	36
18	38
19	43
20	44
21	49
22	50
23	54
24	55
25	56
26	57
27	58
28	61
29	62
30	63
31	66
32	67
33	68
34	69
35	73
36	75
37	80
38	84
39	88
40	91
41	93
42	98
43	99
44	100
45	103
46	107
47	108
48	110
49	112
50	114
51	118
52	119
53	124
54	125
55	128
56	133
57	137
58	138
59	146
60	147
61	150
62	151
63	153

n	a(n)
1	1
2	2
3	9
4	12
5	14
6	15
7	16
8	18
9	20
10	23
11	24
12	26
13	30
14	32
15	34
16	35
17	36
18	38
19	43
20	44
21	49
22	50
23	54
24	55
25	56
26	57
27	58
28	61
29	62
30	63
31	66
32	67
33	68
34	69
35	73
36	75
37	80
38	84
39	88
40	91
41	93
42	98
43	99
44	100
45	103
46	107
47	108
48	110
49	112
50	114
51	118
52	119
53	124
54	125
55	128
56	133
57	137
58	138
59	146
60	147
61	150
62	151
63	153

n	a(n)
1	1
2	2
3	9
4	12
5	14
6	15
7	16
8	18
9	20
10	23
11	24
12	26
13	30
14	32
15	34
16	35
17	36
18	38
19	43
20	44
21	49
22	50
23	54
24	55
25	56
26	57
27	58
28	61
29	62
30	63
31	66
32	67
33	68
34	69
35	73
36	75
37	80
38	84
39	88
40	91
41	93
42	98
43	99
44	100
45	103
46	107
47	108
48	110
49	112
50	114
51	118
52	119
53	124
54	125
55	128
56	133
57	137
58	138
59	146
60	147
61	150
62	151
63	153