A166546 - cp's OEIS frontend

A166546 Natural numbers n such that d(n) + 1 is prime.

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	15
14	17
15	18
16	19
17	20
18	21
19	22
20	23
21	26
22	27
23	28
24	29
25	31
26	32
27	33
28	34
29	35
30	37
31	38
32	39
33	41
34	43
35	44
36	45
37	46
38	47
39	48
40	50
41	51
42	52
43	53
44	55
45	57
46	58
47	59
48	60
49	61
50	62
51	63
52	65
53	67
54	68
55	69
56	71
57	72
58	73
59	74
60	75
61	76
62	77
63	79
64	80
65	82
66	83
67	84
68	85
69	86
70	87
71	89
72	90

[1, 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 26, 27, 28, 29, 31, 32, 33, 34, 35, 37, 38, 39, 41, 43, 44, 45, 46, 47, 48, 50, 51, 52, 53, 55, 57, 58, 59, 60, 61, 62, 63, 65, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77, 79, 80, 82, 83, 84, 85, 86, 87, 89, 90]

cp's OEIS Frontend

A166546 Natural numbers n such that d(n) + 1 is prime.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	15
14	17
15	18
16	19
17	20
18	21
19	22
20	23
21	26
22	27
23	28
24	29
25	31
26	32
27	33
28	34
29	35
30	37
31	38
32	39
33	41
34	43
35	44
36	45
37	46
38	47
39	48
40	50
41	51
42	52
43	53
44	55
45	57
46	58
47	59
48	60
49	61
50	62
51	63
52	65
53	67
54	68
55	69
56	71
57	72
58	73
59	74
60	75
61	76
62	77
63	79
64	80
65	82
66	83
67	84
68	85
69	86
70	87
71	89
72	90

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	15
14	17
15	18
16	19
17	20
18	21
19	22
20	23
21	26
22	27
23	28
24	29
25	31
26	32
27	33
28	34
29	35
30	37
31	38
32	39
33	41
34	43
35	44
36	45
37	46
38	47
39	48
40	50
41	51
42	52
43	53
44	55
45	57
46	58
47	59
48	60
49	61
50	62
51	63
52	65
53	67
54	68
55	69
56	71
57	72
58	73
59	74
60	75
61	76
62	77
63	79
64	80
65	82
66	83
67	84
68	85
69	86
70	87
71	89
72	90

n	a(n)
1	1
2	2
3	3
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	15
14	17
15	18
16	19
17	20
18	21
19	22
20	23
21	26
22	27
23	28
24	29
25	31
26	32
27	33
28	34
29	35
30	37
31	38
32	39
33	41
34	43
35	44
36	45
37	46
38	47
39	48
40	50
41	51
42	52
43	53
44	55
45	57
46	58
47	59
48	60
49	61
50	62
51	63
52	65
53	67
54	68
55	69
56	71
57	72
58	73
59	74
60	75
61	76
62	77
63	79
64	80
65	82
66	83
67	84
68	85
69	86
70	87
71	89
72	90