A152757 - cp's OEIS frontend

A152757 Numbers k such that the deficiency of k plus the number of proper divisors of k is a prime number (see A152864).

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	16
13	17
14	18
15	19
16	20
17	21
18	22
19	23
20	26
21	27
22	28
23	29
24	31
25	34
26	37
27	38
28	41
29	43
30	45
31	46
32	47
33	49
34	52
35	53
36	55
37	57
38	58
39	59
40	61
41	62
42	64
43	67
44	70
45	71
46	73
47	74
48	75
49	76
50	77
51	79
52	82
53	83
54	86
55	88
56	89
57	91
58	93
59	94
60	95
61	97
62	99
63	101
64	103
65	104
66	106
67	107
68	109
69	110
70	111

[2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 14, 16, 17, 18, 19, 20, 21, 22, 23, 26, 27, 28, 29, 31, 34, 37, 38, 41, 43, 45, 46, 47, 49, 52, 53, 55, 57, 58, 59, 61, 62, 64, 67, 70, 71, 73, 74, 75, 76, 77, 79, 82, 83, 86, 88, 89, 91, 93, 94, 95, 97, 99, 101, 103, 104, 106, 107, 109, 110, 111]

cp's OEIS Frontend

A152757 Numbers k such that the deficiency of k plus the number of proper divisors of k is a prime number (see A152864).

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	16
13	17
14	18
15	19
16	20
17	21
18	22
19	23
20	26
21	27
22	28
23	29
24	31
25	34
26	37
27	38
28	41
29	43
30	45
31	46
32	47
33	49
34	52
35	53
36	55
37	57
38	58
39	59
40	61
41	62
42	64
43	67
44	70
45	71
46	73
47	74
48	75
49	76
50	77
51	79
52	82
53	83
54	86
55	88
56	89
57	91
58	93
59	94
60	95
61	97
62	99
63	101
64	103
65	104
66	106
67	107
68	109
69	110
70	111

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	16
13	17
14	18
15	19
16	20
17	21
18	22
19	23
20	26
21	27
22	28
23	29
24	31
25	34
26	37
27	38
28	41
29	43
30	45
31	46
32	47
33	49
34	52
35	53
36	55
37	57
38	58
39	59
40	61
41	62
42	64
43	67
44	70
45	71
46	73
47	74
48	75
49	76
50	77
51	79
52	82
53	83
54	86
55	88
56	89
57	91
58	93
59	94
60	95
61	97
62	99
63	101
64	103
65	104
66	106
67	107
68	109
69	110
70	111

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	9
8	10
9	11
10	13
11	14
12	16
13	17
14	18
15	19
16	20
17	21
18	22
19	23
20	26
21	27
22	28
23	29
24	31
25	34
26	37
27	38
28	41
29	43
30	45
31	46
32	47
33	49
34	52
35	53
36	55
37	57
38	58
39	59
40	61
41	62
42	64
43	67
44	70
45	71
46	73
47	74
48	75
49	76
50	77
51	79
52	82
53	83
54	86
55	88
56	89
57	91
58	93
59	94
60	95
61	97
62	99
63	101
64	103
65	104
66	106
67	107
68	109
69	110
70	111