A077136 - cp's OEIS frontend

A077136 Composite numbers n whose proper divisors (excluding 1 and n) are all of the form p or p+1, with p prime.

n	a(n)
1	4
2	6
3	8
4	9
5	10
6	12
7	14
8	15
9	16
10	21
11	22
12	24
13	25
14	26
15	28
16	33
17	34
18	35
19	38
20	39
21	46
22	49
23	51
24	55
25	57
26	58
27	62
28	65
29	69
30	74
31	76
32	77
33	82
34	85
35	86
36	87
37	91
38	93
39	94
40	95
41	106
42	111
43	115
44	118
45	119
46	121
47	122
48	123
49	124
50	129
51	133
52	134
53	141
54	142
55	143
56	145
57	146
58	148
59	155
60	158
61	159
62	161

[4, 6, 8, 9, 10, 12, 14, 15, 16, 21, 22, 24, 25, 26, 28, 33, 34, 35, 38, 39, 46, 49, 51, 55, 57, 58, 62, 65, 69, 74, 76, 77, 82, 85, 86, 87, 91, 93, 94, 95, 106, 111, 115, 118, 119, 121, 122, 123, 124, 129, 133, 134, 141, 142, 143, 145, 146, 148, 155, 158, 159, 161]

cp's OEIS Frontend

A077136 Composite numbers n whose proper divisors (excluding 1 and n) are all of the form p or p+1, with p prime.

Table of values

List of values

n	a(n)
1	4
2	6
3	8
4	9
5	10
6	12
7	14
8	15
9	16
10	21
11	22
12	24
13	25
14	26
15	28
16	33
17	34
18	35
19	38
20	39
21	46
22	49
23	51
24	55
25	57
26	58
27	62
28	65
29	69
30	74
31	76
32	77
33	82
34	85
35	86
36	87
37	91
38	93
39	94
40	95
41	106
42	111
43	115
44	118
45	119
46	121
47	122
48	123
49	124
50	129
51	133
52	134
53	141
54	142
55	143
56	145
57	146
58	148
59	155
60	158
61	159
62	161

n	a(n)
1	4
2	6
3	8
4	9
5	10
6	12
7	14
8	15
9	16
10	21
11	22
12	24
13	25
14	26
15	28
16	33
17	34
18	35
19	38
20	39
21	46
22	49
23	51
24	55
25	57
26	58
27	62
28	65
29	69
30	74
31	76
32	77
33	82
34	85
35	86
36	87
37	91
38	93
39	94
40	95
41	106
42	111
43	115
44	118
45	119
46	121
47	122
48	123
49	124
50	129
51	133
52	134
53	141
54	142
55	143
56	145
57	146
58	148
59	155
60	158
61	159
62	161

n	a(n)
1	4
2	6
3	8
4	9
5	10
6	12
7	14
8	15
9	16
10	21
11	22
12	24
13	25
14	26
15	28
16	33
17	34
18	35
19	38
20	39
21	46
22	49
23	51
24	55
25	57
26	58
27	62
28	65
29	69
30	74
31	76
32	77
33	82
34	85
35	86
36	87
37	91
38	93
39	94
40	95
41	106
42	111
43	115
44	118
45	119
46	121
47	122
48	123
49	124
50	129
51	133
52	134
53	141
54	142
55	143
56	145
57	146
58	148
59	155
60	158
61	159
62	161