A024683 - cp's OEIS frontend

A024683 a(n) is the number of ways prime(n) is a sum of two composite numbers r,s satisfying r < s.

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	2
9	2
10	4
11	5
12	6
13	7
14	8
15	8
16	10
17	12
18	13
19	14
20	15
21	16
22	17
23	18
24	20
25	23
26	24
27	25
28	25
29	26
30	26
31	32
32	33
33	35
34	36
35	39
36	40
37	41
38	43
39	44
40	46
41	48
42	49
43	52
44	53
45	53
46	54
47	58
48	63
49	64
50	65
51	65
52	67
53	68
54	71
55	73
56	75
57	77
58	78
59	79
60	80
61	81
62	84
63	90
64	91
65	92
66	92
67	98
68	100
69	104
70	105
71	105
72	107
73	110
74	112
75	114

[0, 0, 0, 0, 0, 1, 1, 2, 2, 4, 5, 6, 7, 8, 8, 10, 12, 13, 14, 15, 16, 17, 18, 20, 23, 24, 25, 25, 26, 26, 32, 33, 35, 36, 39, 40, 41, 43, 44, 46, 48, 49, 52, 53, 53, 54, 58, 63, 64, 65, 65, 67, 68, 71, 73, 75, 77, 78, 79, 80, 81, 84, 90, 91, 92, 92, 98, 100, 104, 105, 105, 107, 110, 112, 114]

cp's OEIS Frontend

A024683 a(n) is the number of ways prime(n) is a sum of two composite numbers r,s satisfying r < s.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	2
9	2
10	4
11	5
12	6
13	7
14	8
15	8
16	10
17	12
18	13
19	14
20	15
21	16
22	17
23	18
24	20
25	23
26	24
27	25
28	25
29	26
30	26
31	32
32	33
33	35
34	36
35	39
36	40
37	41
38	43
39	44
40	46
41	48
42	49
43	52
44	53
45	53
46	54
47	58
48	63
49	64
50	65
51	65
52	67
53	68
54	71
55	73
56	75
57	77
58	78
59	79
60	80
61	81
62	84
63	90
64	91
65	92
66	92
67	98
68	100
69	104
70	105
71	105
72	107
73	110
74	112
75	114

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	2
9	2
10	4
11	5
12	6
13	7
14	8
15	8
16	10
17	12
18	13
19	14
20	15
21	16
22	17
23	18
24	20
25	23
26	24
27	25
28	25
29	26
30	26
31	32
32	33
33	35
34	36
35	39
36	40
37	41
38	43
39	44
40	46
41	48
42	49
43	52
44	53
45	53
46	54
47	58
48	63
49	64
50	65
51	65
52	67
53	68
54	71
55	73
56	75
57	77
58	78
59	79
60	80
61	81
62	84
63	90
64	91
65	92
66	92
67	98
68	100
69	104
70	105
71	105
72	107
73	110
74	112
75	114

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	1
8	2
9	2
10	4
11	5
12	6
13	7
14	8
15	8
16	10
17	12
18	13
19	14
20	15
21	16
22	17
23	18
24	20
25	23
26	24
27	25
28	25
29	26
30	26
31	32
32	33
33	35
34	36
35	39
36	40
37	41
38	43
39	44
40	46
41	48
42	49
43	52
44	53
45	53
46	54
47	58
48	63
49	64
50	65
51	65
52	67
53	68
54	71
55	73
56	75
57	77
58	78
59	79
60	80
61	81
62	84
63	90
64	91
65	92
66	92
67	98
68	100
69	104
70	105
71	105
72	107
73	110
74	112
75	114