A337246 - cp's OEIS frontend

A337246 Sum of the first coordinates of all pairs of prime divisors of n, (p,q), such that p <= q.

n	a(n)
1	0
2	2
3	3
4	2
5	5
6	7
7	7
8	2
9	3
10	9
11	11
12	7
13	13
14	11
15	11
16	2
17	17
18	7
19	19
20	9
21	13
22	15
23	23
24	7
25	5
26	17
27	3
28	11
29	29
30	17
31	31
32	2
33	17
34	21
35	17
36	7
37	37
38	23
39	19
40	9
41	41
42	19
43	43
44	15
45	11
46	27
47	47
48	7
49	7
50	9
51	23
52	17
53	53
54	7
55	21
56	11
57	25
58	33
59	59
60	17
61	61
62	35
63	13
64	2
65	23
66	23
67	67
68	21
69	29
70	23
71	71
72	7
73	73
74	41
75	11
76	23
77	25
78	25
79	79

[0, 2, 3, 2, 5, 7, 7, 2, 3, 9, 11, 7, 13, 11, 11, 2, 17, 7, 19, 9, 13, 15, 23, 7, 5, 17, 3, 11, 29, 17, 31, 2, 17, 21, 17, 7, 37, 23, 19, 9, 41, 19, 43, 15, 11, 27, 47, 7, 7, 9, 23, 17, 53, 7, 21, 11, 25, 33, 59, 17, 61, 35, 13, 2, 23, 23, 67, 21, 29, 23, 71, 7, 73, 41, 11, 23, 25, 25, 79]

cp's OEIS Frontend

A337246 Sum of the first coordinates of all pairs of prime divisors of n, (p,q), such that p <= q.

Table of values

List of values

n	a(n)
1	0
2	2
3	3
4	2
5	5
6	7
7	7
8	2
9	3
10	9
11	11
12	7
13	13
14	11
15	11
16	2
17	17
18	7
19	19
20	9
21	13
22	15
23	23
24	7
25	5
26	17
27	3
28	11
29	29
30	17
31	31
32	2
33	17
34	21
35	17
36	7
37	37
38	23
39	19
40	9
41	41
42	19
43	43
44	15
45	11
46	27
47	47
48	7
49	7
50	9
51	23
52	17
53	53
54	7
55	21
56	11
57	25
58	33
59	59
60	17
61	61
62	35
63	13
64	2
65	23
66	23
67	67
68	21
69	29
70	23
71	71
72	7
73	73
74	41
75	11
76	23
77	25
78	25
79	79

n	a(n)
1	0
2	2
3	3
4	2
5	5
6	7
7	7
8	2
9	3
10	9
11	11
12	7
13	13
14	11
15	11
16	2
17	17
18	7
19	19
20	9
21	13
22	15
23	23
24	7
25	5
26	17
27	3
28	11
29	29
30	17
31	31
32	2
33	17
34	21
35	17
36	7
37	37
38	23
39	19
40	9
41	41
42	19
43	43
44	15
45	11
46	27
47	47
48	7
49	7
50	9
51	23
52	17
53	53
54	7
55	21
56	11
57	25
58	33
59	59
60	17
61	61
62	35
63	13
64	2
65	23
66	23
67	67
68	21
69	29
70	23
71	71
72	7
73	73
74	41
75	11
76	23
77	25
78	25
79	79

n	a(n)
1	0
2	2
3	3
4	2
5	5
6	7
7	7
8	2
9	3
10	9
11	11
12	7
13	13
14	11
15	11
16	2
17	17
18	7
19	19
20	9
21	13
22	15
23	23
24	7
25	5
26	17
27	3
28	11
29	29
30	17
31	31
32	2
33	17
34	21
35	17
36	7
37	37
38	23
39	19
40	9
41	41
42	19
43	43
44	15
45	11
46	27
47	47
48	7
49	7
50	9
51	23
52	17
53	53
54	7
55	21
56	11
57	25
58	33
59	59
60	17
61	61
62	35
63	13
64	2
65	23
66	23
67	67
68	21
69	29
70	23
71	71
72	7
73	73
74	41
75	11
76	23
77	25
78	25
79	79