A318891 - cp's OEIS frontend

A318891 Filter sequence combining the prime signature of n (A046523) with the largest prime factor of n (A006530).

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	10
16	15
17	16
18	12
19	17
20	18
21	14
22	19
23	20
24	21
25	22
26	23
27	24
28	25
29	26
30	27
31	28
32	29
33	19
34	30
35	14
36	31
37	32
38	33
39	23
40	34
41	35
42	36
43	37
44	38
45	18
46	39
47	40
48	41
49	42
50	18
51	30
52	43
53	44
54	21
55	19
56	45
57	33
58	46
59	47
60	48
61	49
62	50
63	25
64	51
65	23
66	52
67	53
68	54
69	39
70	36
71	55
72	56
73	57
74	58
75	18
76	59
77	19
78	60
79	61
80	62
81	63
82	64
83	65
84	66
85	30
86	67
87	46
88	68
89	69
90	48
91	23
92	70
93	50

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 10, 15, 16, 12, 17, 18, 14, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 19, 30, 14, 31, 32, 33, 23, 34, 35, 36, 37, 38, 18, 39, 40, 41, 42, 18, 30, 43, 44, 21, 19, 45, 33, 46, 47, 48, 49, 50, 25, 51, 23, 52, 53, 54, 39, 36, 55, 56, 57, 58, 18, 59, 19, 60, 61, 62, 63, 64, 65, 66, 30, 67, 46, 68, 69, 48, 23, 70, 50]

cp's OEIS Frontend

A318891 Filter sequence combining the prime signature of n (A046523) with the largest prime factor of n (A006530).

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	9
10	10
11	11
12	12
13	13
14	14
15	10
16	15
17	16
18	12
19	17
20	18
21	14
22	19
23	20
24	21
25	22
26	23
27	24
28	25
29	26
30	27
31	28
32	29
33	19
34	30
35	14
36	31
37	32
38	33
39	23
40	34
41	35
42	36
43	37
44	38
45	18
46	39
47	40
48	41
49	42
50	18
51	30
52	43
53	44
54	21
55	19
56	45
57	33
58	46
59	47
60	48
61	49
62	50
63	25
64	51
65	23
66	52
67	53
68	54
69	39
70	36
71	55
72	56
73	57
74	58
75	18
76	59
77	19
78	60
79	61
80	62
81	63
82	64
83	65
84	66
85	30
86	67
87	46
88	68
89	69
90	48
91	23
92	70
93	50

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	10
16	15
17	16
18	12
19	17
20	18
21	14
22	19
23	20
24	21
25	22
26	23
27	24
28	25
29	26
30	27
31	28
32	29
33	19
34	30
35	14
36	31
37	32
38	33
39	23
40	34
41	35
42	36
43	37
44	38
45	18
46	39
47	40
48	41
49	42
50	18
51	30
52	43
53	44
54	21
55	19
56	45
57	33
58	46
59	47
60	48
61	49
62	50
63	25
64	51
65	23
66	52
67	53
68	54
69	39
70	36
71	55
72	56
73	57
74	58
75	18
76	59
77	19
78	60
79	61
80	62
81	63
82	64
83	65
84	66
85	30
86	67
87	46
88	68
89	69
90	48
91	23
92	70
93	50

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	14
15	10
16	15
17	16
18	12
19	17
20	18
21	14
22	19
23	20
24	21
25	22
26	23
27	24
28	25
29	26
30	27
31	28
32	29
33	19
34	30
35	14
36	31
37	32
38	33
39	23
40	34
41	35
42	36
43	37
44	38
45	18
46	39
47	40
48	41
49	42
50	18
51	30
52	43
53	44
54	21
55	19
56	45
57	33
58	46
59	47
60	48
61	49
62	50
63	25
64	51
65	23
66	52
67	53
68	54
69	39
70	36
71	55
72	56
73	57
74	58
75	18
76	59
77	19
78	60
79	61
80	62
81	63
82	64
83	65
84	66
85	30
86	67
87	46
88	68
89	69
90	48
91	23
92	70
93	50