A255472 - cp's OEIS frontend

A255472 Number of decompositions of 2n into sums of two primes p <= q such that one or both p and q are elements of A023201.

n	a(n)
1	0
2	0
3	0
4	1
5	2
6	1
7	2
8	2
9	2
10	2
11	2
12	3
13	3
14	2
15	3
16	1
17	4
18	4
19	1
20	3
21	4
22	3
23	3
24	4
25	4
26	3
27	5
28	3
29	3
30	6
31	1
32	5
33	6
34	2
35	5
36	5
37	4
38	5
39	6
40	4
41	4
42	8
43	4
44	3
45	8
46	3
47	5
48	7
49	2
50	5
51	7
52	5
53	6
54	6
55	6
56	6
57	9
58	5
59	4
60	12
61	3
62	5
63	10
64	2
65	5
66	7
67	6
68	5
69	6
70	6
71	5
72	11
73	5
74	4
75	11
76	2
77	8
78	8
79	3
80	7
81	10
82	5
83	4
84	9
85	8
86	5

[0, 0, 0, 1, 2, 1, 2, 2, 2, 2, 2, 3, 3, 2, 3, 1, 4, 4, 1, 3, 4, 3, 3, 4, 4, 3, 5, 3, 3, 6, 1, 5, 6, 2, 5, 5, 4, 5, 6, 4, 4, 8, 4, 3, 8, 3, 5, 7, 2, 5, 7, 5, 6, 6, 6, 6, 9, 5, 4, 12, 3, 5, 10, 2, 5, 7, 6, 5, 6, 6, 5, 11, 5, 4, 11, 2, 8, 8, 3, 7, 10, 5, 4, 9, 8, 5]

cp's OEIS Frontend

A255472 Number of decompositions of 2n into sums of two primes p <= q such that one or both p and q are elements of A023201.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	1
5	2
6	1
7	2
8	2
9	2
10	2
11	2
12	3
13	3
14	2
15	3
16	1
17	4
18	4
19	1
20	3
21	4
22	3
23	3
24	4
25	4
26	3
27	5
28	3
29	3
30	6
31	1
32	5
33	6
34	2
35	5
36	5
37	4
38	5
39	6
40	4
41	4
42	8
43	4
44	3
45	8
46	3
47	5
48	7
49	2
50	5
51	7
52	5
53	6
54	6
55	6
56	6
57	9
58	5
59	4
60	12
61	3
62	5
63	10
64	2
65	5
66	7
67	6
68	5
69	6
70	6
71	5
72	11
73	5
74	4
75	11
76	2
77	8
78	8
79	3
80	7
81	10
82	5
83	4
84	9
85	8
86	5

n	a(n)
1	0
2	0
3	0
4	1
5	2
6	1
7	2
8	2
9	2
10	2
11	2
12	3
13	3
14	2
15	3
16	1
17	4
18	4
19	1
20	3
21	4
22	3
23	3
24	4
25	4
26	3
27	5
28	3
29	3
30	6
31	1
32	5
33	6
34	2
35	5
36	5
37	4
38	5
39	6
40	4
41	4
42	8
43	4
44	3
45	8
46	3
47	5
48	7
49	2
50	5
51	7
52	5
53	6
54	6
55	6
56	6
57	9
58	5
59	4
60	12
61	3
62	5
63	10
64	2
65	5
66	7
67	6
68	5
69	6
70	6
71	5
72	11
73	5
74	4
75	11
76	2
77	8
78	8
79	3
80	7
81	10
82	5
83	4
84	9
85	8
86	5

n	a(n)
1	0
2	0
3	0
4	1
5	2
6	1
7	2
8	2
9	2
10	2
11	2
12	3
13	3
14	2
15	3
16	1
17	4
18	4
19	1
20	3
21	4
22	3
23	3
24	4
25	4
26	3
27	5
28	3
29	3
30	6
31	1
32	5
33	6
34	2
35	5
36	5
37	4
38	5
39	6
40	4
41	4
42	8
43	4
44	3
45	8
46	3
47	5
48	7
49	2
50	5
51	7
52	5
53	6
54	6
55	6
56	6
57	9
58	5
59	4
60	12
61	3
62	5
63	10
64	2
65	5
66	7
67	6
68	5
69	6
70	6
71	5
72	11
73	5
74	4
75	11
76	2
77	8
78	8
79	3
80	7
81	10
82	5
83	4
84	9
85	8
86	5