A322035 - cp's OEIS frontend

A322035 Let p1 <= p2 <= ... <= pk be the prime factors of n, with repetition; let s = 1/p1 + 1/(p1p2) + 1/(p1p2p3) + ... + 1/(p1p2...pk); a(n) = denominator of s. a(1)=1 by convention.

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

[1, 2, 3, 4, 5, 3, 7, 8, 9, 5, 11, 6, 13, 7, 5, 16, 17, 18, 19, 5, 21, 11, 23, 12, 25, 13, 27, 14, 29, 10, 31, 32, 11, 17, 35, 36, 37, 19, 39, 10, 41, 42, 43, 22, 15, 23, 47, 24, 49, 50, 17, 13, 53, 27, 55, 28, 57, 29, 59, 20, 61, 31, 63, 64, 65, 22]

cp's OEIS Frontend

A322035 Let p1 <= p2 <= ... <= pk be the prime factors of n, with repetition; let s = 1/p1 + 1/(p1p2) + 1/(p1p2p3) + ... + 1/(p1p2...pk); a(n) = denominator of s. a(1)=1 by convention.

Table of values

List of values

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

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

cp's OEIS Frontend

A322035 Let p1 <= p2 <= ... <= pk be the prime factors of n, with repetition; let s = 1/p1 + 1/(p1*p2) + 1/(p1*p2*p3) + ... + 1/(p1*p2*...*pk); a(n) = denominator of s. a(1)=1 by convention.

Table of values

List of values

A322035 Let p1 <= p2 <= ... <= pk be the prime factors of n, with repetition; let s = 1/p1 + 1/(p1p2) + 1/(p1p2p3) + ... + 1/(p1p2...pk); a(n) = denominator of s. a(1)=1 by convention.

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