A192789 - cp's OEIS frontend

A192789 Number of distinct solutions of 4/p = 1/a + 1/b + 1/c in positive integers satisfying 1<=a<=b<=c where p is the n-th prime.

n	a(n)
1	1
2	3
3	2
4	7
5	9
6	4
7	4
8	11
9	21
10	7
11	19
12	9
13	7
14	14
15	34
16	13
17	27
18	11
19	17
20	40
21	7
22	37
23	27
24	10
25	8
26	16
27	27
28	25
29	15
30	13
31	33
32	32
33	17
34	36
35	18
36	31
37	24
38	24
39	65
40	26
41	47
42	17
43	67
44	6
45	23
46	42
47	30
48	58
49	37
50	20
51	19
52	106
53	8
54	51
55	19
56	71
57	28
58	48
59	31
60	17
61	33
62	34
63	40
64	79
65	16
66	34
67	38
68	21
69	39
70	32
71	19
72	110
73	52
74	33
75	39
76	86
77	30
78	29
79	23
80	15
81	81
82	16
83	93
84	19

[1, 3, 2, 7, 9, 4, 4, 11, 21, 7, 19, 9, 7, 14, 34, 13, 27, 11, 17, 40, 7, 37, 27, 10, 8, 16, 27, 25, 15, 13, 33, 32, 17, 36, 18, 31, 24, 24, 65, 26, 47, 17, 67, 6, 23, 42, 30, 58, 37, 20, 19, 106, 8, 51, 19, 71, 28, 48, 31, 17, 33, 34, 40, 79, 16, 34, 38, 21, 39, 32, 19, 110, 52, 33, 39, 86, 30, 29, 23, 15, 81, 16, 93, 19]

cp's OEIS Frontend

A192789 Number of distinct solutions of 4/p = 1/a + 1/b + 1/c in positive integers satisfying 1<=a<=b<=c where p is the n-th prime.

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	7
5	9
6	4
7	4
8	11
9	21
10	7
11	19
12	9
13	7
14	14
15	34
16	13
17	27
18	11
19	17
20	40
21	7
22	37
23	27
24	10
25	8
26	16
27	27
28	25
29	15
30	13
31	33
32	32
33	17
34	36
35	18
36	31
37	24
38	24
39	65
40	26
41	47
42	17
43	67
44	6
45	23
46	42
47	30
48	58
49	37
50	20
51	19
52	106
53	8
54	51
55	19
56	71
57	28
58	48
59	31
60	17
61	33
62	34
63	40
64	79
65	16
66	34
67	38
68	21
69	39
70	32
71	19
72	110
73	52
74	33
75	39
76	86
77	30
78	29
79	23
80	15
81	81
82	16
83	93
84	19

n	a(n)
1	1
2	3
3	2
4	7
5	9
6	4
7	4
8	11
9	21
10	7
11	19
12	9
13	7
14	14
15	34
16	13
17	27
18	11
19	17
20	40
21	7
22	37
23	27
24	10
25	8
26	16
27	27
28	25
29	15
30	13
31	33
32	32
33	17
34	36
35	18
36	31
37	24
38	24
39	65
40	26
41	47
42	17
43	67
44	6
45	23
46	42
47	30
48	58
49	37
50	20
51	19
52	106
53	8
54	51
55	19
56	71
57	28
58	48
59	31
60	17
61	33
62	34
63	40
64	79
65	16
66	34
67	38
68	21
69	39
70	32
71	19
72	110
73	52
74	33
75	39
76	86
77	30
78	29
79	23
80	15
81	81
82	16
83	93
84	19

n	a(n)
1	1
2	3
3	2
4	7
5	9
6	4
7	4
8	11
9	21
10	7
11	19
12	9
13	7
14	14
15	34
16	13
17	27
18	11
19	17
20	40
21	7
22	37
23	27
24	10
25	8
26	16
27	27
28	25
29	15
30	13
31	33
32	32
33	17
34	36
35	18
36	31
37	24
38	24
39	65
40	26
41	47
42	17
43	67
44	6
45	23
46	42
47	30
48	58
49	37
50	20
51	19
52	106
53	8
54	51
55	19
56	71
57	28
58	48
59	31
60	17
61	33
62	34
63	40
64	79
65	16
66	34
67	38
68	21
69	39
70	32
71	19
72	110
73	52
74	33
75	39
76	86
77	30
78	29
79	23
80	15
81	81
82	16
83	93
84	19