A348018 - cp's OEIS frontend

A348018 a(n) is the index of A064549(n) = n * Product_{p prime|n} p in the sequence of powerful numbers (A001694).

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	9
7	10
8	5
9	7
10	14
11	16
12	12
13	20
14	21
15	24
16	8
17	28
18	15
19	31
20	22
21	35
22	36
23	39
24	19
25	17
26	44
27	13
28	32
29	48
30	50
31	51
32	11
33	56
34	59
35	60
36	23
37	65
38	67
39	68
40	33
41	71
42	73
43	75
44	52
45	43
46	81
47	84
48	27
49	30
50	37
51	90
52	64
53	94
54	29
55	97
56	46
57	102
58	104
59	107
60	74
61	110
62	111
63	62
64	18
65	117
66	119

[1, 2, 4, 3, 6, 9, 10, 5, 7, 14, 16, 12, 20, 21, 24, 8, 28, 15, 31, 22, 35, 36, 39, 19, 17, 44, 13, 32, 48, 50, 51, 11, 56, 59, 60, 23, 65, 67, 68, 33, 71, 73, 75, 52, 43, 81, 84, 27, 30, 37, 90, 64, 94, 29, 97, 46, 102, 104, 107, 74, 110, 111, 62, 18, 117, 119]

cp's OEIS Frontend

A348018 a(n) is the index of A064549(n) = n * Product_{p prime|n} p in the sequence of powerful numbers (A001694).

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	9
7	10
8	5
9	7
10	14
11	16
12	12
13	20
14	21
15	24
16	8
17	28
18	15
19	31
20	22
21	35
22	36
23	39
24	19
25	17
26	44
27	13
28	32
29	48
30	50
31	51
32	11
33	56
34	59
35	60
36	23
37	65
38	67
39	68
40	33
41	71
42	73
43	75
44	52
45	43
46	81
47	84
48	27
49	30
50	37
51	90
52	64
53	94
54	29
55	97
56	46
57	102
58	104
59	107
60	74
61	110
62	111
63	62
64	18
65	117
66	119

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	9
7	10
8	5
9	7
10	14
11	16
12	12
13	20
14	21
15	24
16	8
17	28
18	15
19	31
20	22
21	35
22	36
23	39
24	19
25	17
26	44
27	13
28	32
29	48
30	50
31	51
32	11
33	56
34	59
35	60
36	23
37	65
38	67
39	68
40	33
41	71
42	73
43	75
44	52
45	43
46	81
47	84
48	27
49	30
50	37
51	90
52	64
53	94
54	29
55	97
56	46
57	102
58	104
59	107
60	74
61	110
62	111
63	62
64	18
65	117
66	119

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	9
7	10
8	5
9	7
10	14
11	16
12	12
13	20
14	21
15	24
16	8
17	28
18	15
19	31
20	22
21	35
22	36
23	39
24	19
25	17
26	44
27	13
28	32
29	48
30	50
31	51
32	11
33	56
34	59
35	60
36	23
37	65
38	67
39	68
40	33
41	71
42	73
43	75
44	52
45	43
46	81
47	84
48	27
49	30
50	37
51	90
52	64
53	94
54	29
55	97
56	46
57	102
58	104
59	107
60	74
61	110
62	111
63	62
64	18
65	117
66	119