A224713 - cp's OEIS frontend

A224713 The number of unordered partitions {a, b} of the even numbers 2n such that a or b is composite and the other is prime.

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

[0, 0, 1, 1, 1, 2, 2, 2, 2, 3, 3, 2, 4, 5, 3, 6, 4, 3, 8, 6, 4, 7, 7, 4, 7, 9, 5, 10, 9, 4, 12, 8, 6, 14, 9, 7, 11, 11, 7, 13, 13, 6, 14, 15, 5, 16, 15, 10, 18, 13, 9, 16, 16, 11, 16, 15, 9, 18, 19, 6, 23, 20, 10, 24, 17, 13, 21, 22, 16, 19, 19, 12, 23, 24]

cp's OEIS Frontend

A224713 The number of unordered partitions {a, b} of the even numbers 2n such that a or b is composite and the other is prime.

Table of values

List of values

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

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

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