A347243 - cp's OEIS frontend

A347243 Numbers k such that when iterating the map x -> A000593(x), we will not encounter a term x (after the starting point x=k) whose largest prime factor would be at least as large as A006530(k), before 1 is eventually reached.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	19
18	20
19	21
20	22
21	23
22	24
23	26
24	28
25	29
26	30
27	31
28	32
29	33
30	34
31	35
32	37
33	38
34	39
35	40
36	41
37	42
38	43
39	44
40	46
41	47
42	48
43	51
44	52
45	53
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
82	97
83	101

[1, 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, 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, 97, 101]

cp's OEIS Frontend

A347243 Numbers k such that when iterating the map x -> A000593(x), we will not encounter a term x (after the starting point x=k) whose largest prime factor would be at least as large as A006530(k), before 1 is eventually reached.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	19
18	20
19	21
20	22
21	23
22	24
23	26
24	28
25	29
26	30
27	31
28	32
29	33
30	34
31	35
32	37
33	38
34	39
35	40
36	41
37	42
38	43
39	44
40	46
41	47
42	48
43	51
44	52
45	53
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
82	97
83	101

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	19
18	20
19	21
20	22
21	23
22	24
23	26
24	28
25	29
26	30
27	31
28	32
29	33
30	34
31	35
32	37
33	38
34	39
35	40
36	41
37	42
38	43
39	44
40	46
41	47
42	48
43	51
44	52
45	53
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
82	97
83	101

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	10
10	11
11	12
12	13
13	14
14	15
15	16
16	17
17	19
18	20
19	21
20	22
21	23
22	24
23	26
24	28
25	29
26	30
27	31
28	32
29	33
30	34
31	35
32	37
33	38
34	39
35	40
36	41
37	42
38	43
39	44
40	46
41	47
42	48
43	51
44	52
45	53
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
82	97
83	101