A339436 - cp's OEIS frontend

A339436 If n = p_1 * ... * p_m with primes p_i <= p_{i+1}, a(n) = Sum_{j=1..m-1} p_1...p_j + Sum_{j=2..m} p_j...p_m.

n	a(n)
2	0
3	0
4	4
5	0
6	5
7	0
8	12
9	6
10	7
11	0
12	15
13	0
14	9
15	8
16	28
17	0
18	20
19	0
20	21
21	10
22	13
23	0
24	35
25	10
26	15
27	24
28	27
29	0
30	28
31	0
32	60
33	14
34	19
35	12
36	48
37	0
38	21
39	16
40	49
41	0
42	36
43	0
44	39
45	32
46	25
47	0
48	75
49	14
50	42
51	20
52	45
53	0
54	65
55	16
56	63
57	22
58	31
59	0
60	68
61	0
62	33
63	40
64	124
65	18
66	52
67	0
68	57
69	26
70	54
71	0
72	104
73	0
74	39
75	48
76	63
77	18
78	60
79	0
80	105
81	78
82	43

[0, 0, 4, 0, 5, 0, 12, 6, 7, 0, 15, 0, 9, 8, 28, 0, 20, 0, 21, 10, 13, 0, 35, 10, 15, 24, 27, 0, 28, 0, 60, 14, 19, 12, 48, 0, 21, 16, 49, 0, 36, 0, 39, 32, 25, 0, 75, 14, 42, 20, 45, 0, 65, 16, 63, 22, 31, 0, 68, 0, 33, 40, 124, 18, 52, 0, 57, 26, 54, 0, 104, 0, 39, 48, 63, 18, 60, 0, 105, 78, 43]

cp's OEIS Frontend

A339436 If n = p_1 * ... * p_m with primes p_i <= p_{i+1}, a(n) = Sum_{j=1..m-1} p_1...p_j + Sum_{j=2..m} p_j...p_m.

Table of values

List of values

n	a(n)
2	0
3	0
4	4
5	0
6	5
7	0
8	12
9	6
10	7
11	0
12	15
13	0
14	9
15	8
16	28
17	0
18	20
19	0
20	21
21	10
22	13
23	0
24	35
25	10
26	15
27	24
28	27
29	0
30	28
31	0
32	60
33	14
34	19
35	12
36	48
37	0
38	21
39	16
40	49
41	0
42	36
43	0
44	39
45	32
46	25
47	0
48	75
49	14
50	42
51	20
52	45
53	0
54	65
55	16
56	63
57	22
58	31
59	0
60	68
61	0
62	33
63	40
64	124
65	18
66	52
67	0
68	57
69	26
70	54
71	0
72	104
73	0
74	39
75	48
76	63
77	18
78	60
79	0
80	105
81	78
82	43

n	a(n)
2	0
3	0
4	4
5	0
6	5
7	0
8	12
9	6
10	7
11	0
12	15
13	0
14	9
15	8
16	28
17	0
18	20
19	0
20	21
21	10
22	13
23	0
24	35
25	10
26	15
27	24
28	27
29	0
30	28
31	0
32	60
33	14
34	19
35	12
36	48
37	0
38	21
39	16
40	49
41	0
42	36
43	0
44	39
45	32
46	25
47	0
48	75
49	14
50	42
51	20
52	45
53	0
54	65
55	16
56	63
57	22
58	31
59	0
60	68
61	0
62	33
63	40
64	124
65	18
66	52
67	0
68	57
69	26
70	54
71	0
72	104
73	0
74	39
75	48
76	63
77	18
78	60
79	0
80	105
81	78
82	43

cp's OEIS Frontend

A339436 If n = p_1 * ... * p_m with primes p_i <= p_{i+1}, a(n) = Sum_{j=1..m-1} p_1*...*p_j + Sum_{j=2..m} p_j*...*p_m.

Table of values

List of values

A339436 If n = p_1 * ... * p_m with primes p_i <= p_{i+1}, a(n) = Sum_{j=1..m-1} p_1...p_j + Sum_{j=2..m} p_j...p_m.

n	a(n)
2	0
3	0
4	4
5	0
6	5
7	0
8	12
9	6
10	7
11	0
12	15
13	0
14	9
15	8
16	28
17	0
18	20
19	0
20	21
21	10
22	13
23	0
24	35
25	10
26	15
27	24
28	27
29	0
30	28
31	0
32	60
33	14
34	19
35	12
36	48
37	0
38	21
39	16
40	49
41	0
42	36
43	0
44	39
45	32
46	25
47	0
48	75
49	14
50	42
51	20
52	45
53	0
54	65
55	16
56	63
57	22
58	31
59	0
60	68
61	0
62	33
63	40
64	124
65	18
66	52
67	0
68	57
69	26
70	54
71	0
72	104
73	0
74	39
75	48
76	63
77	18
78	60
79	0
80	105
81	78
82	43