A257177 - cp's OEIS frontend

A257177 Number of partitions of n into 2 or 3 primes.

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	2
7	2
8	2
9	3
10	3
11	2
12	3
13	3
14	3
15	4
16	4
17	4
18	4
19	4
20	4
21	6
22	5
23	5
24	6
25	6
26	6
27	7
28	5
29	7
30	5
31	7
32	5
33	10
34	6
35	8
36	8
37	9
38	6
39	11
40	5
41	11
42	7
43	11
44	7
45	13
46	7
47	13
48	9
49	13
50	9
51	15
52	7
53	16
54	8
55	15
56	8
57	17
58	7
59	16
60	10
61	17
62	9
63	20
64	8
65	21
66	11
67	20
68	8
69	21
70	7
71	22
72	11
73	22
74	11
75	23
76	10
77	28
78	12
79	24
80	11

[0, 0, 0, 1, 1, 2, 2, 2, 3, 3, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 6, 5, 5, 6, 6, 6, 7, 5, 7, 5, 7, 5, 10, 6, 8, 8, 9, 6, 11, 5, 11, 7, 11, 7, 13, 7, 13, 9, 13, 9, 15, 7, 16, 8, 15, 8, 17, 7, 16, 10, 17, 9, 20, 8, 21, 11, 20, 8, 21, 7, 22, 11, 22, 11, 23, 10, 28, 12, 24, 11]

cp's OEIS Frontend

A257177 Number of partitions of n into 2 or 3 primes.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	2
7	2
8	2
9	3
10	3
11	2
12	3
13	3
14	3
15	4
16	4
17	4
18	4
19	4
20	4
21	6
22	5
23	5
24	6
25	6
26	6
27	7
28	5
29	7
30	5
31	7
32	5
33	10
34	6
35	8
36	8
37	9
38	6
39	11
40	5
41	11
42	7
43	11
44	7
45	13
46	7
47	13
48	9
49	13
50	9
51	15
52	7
53	16
54	8
55	15
56	8
57	17
58	7
59	16
60	10
61	17
62	9
63	20
64	8
65	21
66	11
67	20
68	8
69	21
70	7
71	22
72	11
73	22
74	11
75	23
76	10
77	28
78	12
79	24
80	11

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	2
7	2
8	2
9	3
10	3
11	2
12	3
13	3
14	3
15	4
16	4
17	4
18	4
19	4
20	4
21	6
22	5
23	5
24	6
25	6
26	6
27	7
28	5
29	7
30	5
31	7
32	5
33	10
34	6
35	8
36	8
37	9
38	6
39	11
40	5
41	11
42	7
43	11
44	7
45	13
46	7
47	13
48	9
49	13
50	9
51	15
52	7
53	16
54	8
55	15
56	8
57	17
58	7
59	16
60	10
61	17
62	9
63	20
64	8
65	21
66	11
67	20
68	8
69	21
70	7
71	22
72	11
73	22
74	11
75	23
76	10
77	28
78	12
79	24
80	11

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	2
7	2
8	2
9	3
10	3
11	2
12	3
13	3
14	3
15	4
16	4
17	4
18	4
19	4
20	4
21	6
22	5
23	5
24	6
25	6
26	6
27	7
28	5
29	7
30	5
31	7
32	5
33	10
34	6
35	8
36	8
37	9
38	6
39	11
40	5
41	11
42	7
43	11
44	7
45	13
46	7
47	13
48	9
49	13
50	9
51	15
52	7
53	16
54	8
55	15
56	8
57	17
58	7
59	16
60	10
61	17
62	9
63	20
64	8
65	21
66	11
67	20
68	8
69	21
70	7
71	22
72	11
73	22
74	11
75	23
76	10
77	28
78	12
79	24
80	11