A190353 - cp's OEIS frontend

A190353 Goldbach conjecture: number of decompositions of n into an unordered sum of two odd primes (if n even) or three odd primes (if n odd).

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

[0, 0, 0, 0, 0, 1, 0, 1, 1, 2, 1, 1, 2, 2, 2, 2, 3, 2, 3, 2, 4, 3, 4, 3, 5, 3, 6, 2, 7, 3, 6, 2, 8, 4, 7, 4, 9, 2, 10, 3, 10, 4, 10, 3, 11, 4, 12, 5, 12, 4, 14, 3, 16, 5, 14, 3, 16, 4, 16, 6, 16, 3, 18, 5, 20, 6, 20, 2, 20, 5, 21, 6, 21, 5, 21, 5, 27, 7, 24]

cp's OEIS Frontend

A190353 Goldbach conjecture: number of decompositions of n into an unordered sum of two odd primes (if n even) or three odd primes (if n odd).

Table of values

List of values

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

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

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