A347248 - cp's OEIS frontend

A347248 Numbers k such that the greatest prime factor of A000593(k) [the sum of odd divisors of k] is less than the greatest prime factor of k itself.

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	15
14	16
15	17
16	19
17	20
18	21
19	22
20	23
21	24
22	26
23	28
24	29
25	30
26	31
27	32
28	33
29	34
30	35
31	37
32	38
33	39
34	40
35	41
36	42
37	43
38	44
39	46
40	47
41	48
42	51
43	52
44	53
45	55
46	56
47	57
48	58
49	59
50	60
51	61
52	62
53	64
54	65
55	66
56	67
57	68
58	69
59	70
60	71
61	73
62	74
63	76
64	77
65	78
66	79
67	80
68	82
69	83
70	84
71	85
72	86
73	87
74	88
75	89
76	91
77	92
78	93
79	94
80	95
81	96

[2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 26, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 51, 52, 53, 55, 56, 57, 58, 59, 60, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 76, 77, 78, 79, 80, 82, 83, 84, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 96]

cp's OEIS Frontend

A347248 Numbers k such that the greatest prime factor of A000593(k) [the sum of odd divisors of k] is less than the greatest prime factor of k itself.

Table of values

List of values

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	15
14	16
15	17
16	19
17	20
18	21
19	22
20	23
21	24
22	26
23	28
24	29
25	30
26	31
27	32
28	33
29	34
30	35
31	37
32	38
33	39
34	40
35	41
36	42
37	43
38	44
39	46
40	47
41	48
42	51
43	52
44	53
45	55
46	56
47	57
48	58
49	59
50	60
51	61
52	62
53	64
54	65
55	66
56	67
57	68
58	69
59	70
60	71
61	73
62	74
63	76
64	77
65	78
66	79
67	80
68	82
69	83
70	84
71	85
72	86
73	87
74	88
75	89
76	91
77	92
78	93
79	94
80	95
81	96

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	15
14	16
15	17
16	19
17	20
18	21
19	22
20	23
21	24
22	26
23	28
24	29
25	30
26	31
27	32
28	33
29	34
30	35
31	37
32	38
33	39
34	40
35	41
36	42
37	43
38	44
39	46
40	47
41	48
42	51
43	52
44	53
45	55
46	56
47	57
48	58
49	59
50	60
51	61
52	62
53	64
54	65
55	66
56	67
57	68
58	69
59	70
60	71
61	73
62	74
63	76
64	77
65	78
66	79
67	80
68	82
69	83
70	84
71	85
72	86
73	87
74	88
75	89
76	91
77	92
78	93
79	94
80	95
81	96

n	a(n)
1	2
2	3
3	4
4	5
5	6
6	7
7	8
8	10
9	11
10	12
11	13
12	14
13	15
14	16
15	17
16	19
17	20
18	21
19	22
20	23
21	24
22	26
23	28
24	29
25	30
26	31
27	32
28	33
29	34
30	35
31	37
32	38
33	39
34	40
35	41
36	42
37	43
38	44
39	46
40	47
41	48
42	51
43	52
44	53
45	55
46	56
47	57
48	58
49	59
50	60
51	61
52	62
53	64
54	65
55	66
56	67
57	68
58	69
59	70
60	71
61	73
62	74
63	76
64	77
65	78
66	79
67	80
68	82
69	83
70	84
71	85
72	86
73	87
74	88
75	89
76	91
77	92
78	93
79	94
80	95
81	96