A122411 - cp's OEIS frontend

A122411 a(n) is the sum of primes p for those k's, 2 <= k <= n, where gcd(k,n) = p^j > 1. (a(1) = 0.)

n	a(n)
1	0
2	2
3	3
4	4
5	5
6	7
7	7
8	8
9	9
10	13
11	11
12	14
13	13
14	19
15	22
16	16
17	17
18	21
19	19
20	26
21	32
22	31
23	23
24	28
25	25
26	37
27	27
28	38
29	29
30	38
31	31
32	32
33	52
34	49
35	58
36	42
37	37
38	55
39	62
40	52
41	41
42	56
43	43
44	62
45	66
46	67
47	47
48	56
49	49
50	65
51	82
52	74
53	53
54	63
55	94
56	76
57	92
58	85
59	59
60	76
61	61
62	91
63	96
64	64
65	112
66	92
67	67
68	98
69	112
70	106
71	71

[0, 2, 3, 4, 5, 7, 7, 8, 9, 13, 11, 14, 13, 19, 22, 16, 17, 21, 19, 26, 32, 31, 23, 28, 25, 37, 27, 38, 29, 38, 31, 32, 52, 49, 58, 42, 37, 55, 62, 52, 41, 56, 43, 62, 66, 67, 47, 56, 49, 65, 82, 74, 53, 63, 94, 76, 92, 85, 59, 76, 61, 91, 96, 64, 112, 92, 67, 98, 112, 106, 71]

cp's OEIS Frontend

A122411 a(n) is the sum of primes p for those k's, 2 <= k <= n, where gcd(k,n) = p^j > 1. (a(1) = 0.)

Table of values

List of values

n	a(n)
1	0
2	2
3	3
4	4
5	5
6	7
7	7
8	8
9	9
10	13
11	11
12	14
13	13
14	19
15	22
16	16
17	17
18	21
19	19
20	26
21	32
22	31
23	23
24	28
25	25
26	37
27	27
28	38
29	29
30	38
31	31
32	32
33	52
34	49
35	58
36	42
37	37
38	55
39	62
40	52
41	41
42	56
43	43
44	62
45	66
46	67
47	47
48	56
49	49
50	65
51	82
52	74
53	53
54	63
55	94
56	76
57	92
58	85
59	59
60	76
61	61
62	91
63	96
64	64
65	112
66	92
67	67
68	98
69	112
70	106
71	71

n	a(n)
1	0
2	2
3	3
4	4
5	5
6	7
7	7
8	8
9	9
10	13
11	11
12	14
13	13
14	19
15	22
16	16
17	17
18	21
19	19
20	26
21	32
22	31
23	23
24	28
25	25
26	37
27	27
28	38
29	29
30	38
31	31
32	32
33	52
34	49
35	58
36	42
37	37
38	55
39	62
40	52
41	41
42	56
43	43
44	62
45	66
46	67
47	47
48	56
49	49
50	65
51	82
52	74
53	53
54	63
55	94
56	76
57	92
58	85
59	59
60	76
61	61
62	91
63	96
64	64
65	112
66	92
67	67
68	98
69	112
70	106
71	71

n	a(n)
1	0
2	2
3	3
4	4
5	5
6	7
7	7
8	8
9	9
10	13
11	11
12	14
13	13
14	19
15	22
16	16
17	17
18	21
19	19
20	26
21	32
22	31
23	23
24	28
25	25
26	37
27	27
28	38
29	29
30	38
31	31
32	32
33	52
34	49
35	58
36	42
37	37
38	55
39	62
40	52
41	41
42	56
43	43
44	62
45	66
46	67
47	47
48	56
49	49
50	65
51	82
52	74
53	53
54	63
55	94
56	76
57	92
58	85
59	59
60	76
61	61
62	91
63	96
64	64
65	112
66	92
67	67
68	98
69	112
70	106
71	71