A174905 - cp's OEIS frontend

A174905 Numbers with no pair (d,e) of divisors such that d < e < 2*d.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	16
14	17
15	19
16	21
17	22
18	23
19	25
20	26
21	27
22	29
23	31
24	32
25	33
26	34
27	37
28	38
29	39
30	41
31	43
32	44
33	46
34	47
35	49
36	50
37	51
38	52
39	53
40	55
41	57
42	58
43	59
44	61
45	62
46	64
47	65
48	67
49	68
50	69
51	71
52	73
53	74
54	76
55	79
56	81
57	82
58	83
59	85
60	86
61	87
62	89
63	92
64	93
65	94
66	95
67	97
68	98
69	101
70	103
71	106

[1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 16, 17, 19, 21, 22, 23, 25, 26, 27, 29, 31, 32, 33, 34, 37, 38, 39, 41, 43, 44, 46, 47, 49, 50, 51, 52, 53, 55, 57, 58, 59, 61, 62, 64, 65, 67, 68, 69, 71, 73, 74, 76, 79, 81, 82, 83, 85, 86, 87, 89, 92, 93, 94, 95, 97, 98, 101, 103, 106]

cp's OEIS Frontend

A174905 Numbers with no pair (d,e) of divisors such that d < e < 2*d.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	16
14	17
15	19
16	21
17	22
18	23
19	25
20	26
21	27
22	29
23	31
24	32
25	33
26	34
27	37
28	38
29	39
30	41
31	43
32	44
33	46
34	47
35	49
36	50
37	51
38	52
39	53
40	55
41	57
42	58
43	59
44	61
45	62
46	64
47	65
48	67
49	68
50	69
51	71
52	73
53	74
54	76
55	79
56	81
57	82
58	83
59	85
60	86
61	87
62	89
63	92
64	93
65	94
66	95
67	97
68	98
69	101
70	103
71	106

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	16
14	17
15	19
16	21
17	22
18	23
19	25
20	26
21	27
22	29
23	31
24	32
25	33
26	34
27	37
28	38
29	39
30	41
31	43
32	44
33	46
34	47
35	49
36	50
37	51
38	52
39	53
40	55
41	57
42	58
43	59
44	61
45	62
46	64
47	65
48	67
49	68
50	69
51	71
52	73
53	74
54	76
55	79
56	81
57	82
58	83
59	85
60	86
61	87
62	89
63	92
64	93
65	94
66	95
67	97
68	98
69	101
70	103
71	106

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	10
10	11
11	13
12	14
13	16
14	17
15	19
16	21
17	22
18	23
19	25
20	26
21	27
22	29
23	31
24	32
25	33
26	34
27	37
28	38
29	39
30	41
31	43
32	44
33	46
34	47
35	49
36	50
37	51
38	52
39	53
40	55
41	57
42	58
43	59
44	61
45	62
46	64
47	65
48	67
49	68
50	69
51	71
52	73
53	74
54	76
55	79
56	81
57	82
58	83
59	85
60	86
61	87
62	89
63	92
64	93
65	94
66	95
67	97
68	98
69	101
70	103
71	106