A236541 - cp's OEIS frontend

A236541 Number of ways to write 2*n = k + m with 0 < k <= m such that prime(k) + m and k + prime(m) are both prime.

n	a(n)
1	1
2	1
3	0
4	1
5	1
6	2
7	0
8	1
9	1
10	0
11	3
12	2
13	1
14	2
15	2
16	1
17	1
18	2
19	1
20	1
21	0
22	2
23	2
24	4
25	0
26	4
27	2
28	1
29	2
30	3
31	0
32	4
33	3
34	2
35	1
36	1
37	1
38	1
39	2
40	2
41	1
42	3
43	2
44	2
45	5
46	1
47	5
48	3
49	3
50	4
51	5
52	1
53	4
54	1
55	3
56	3
57	6
58	4
59	4
60	1
61	4
62	4
63	3
64	5
65	5
66	5
67	2
68	2
69	2
70	4
71	3
72	2
73	3
74	3
75	7
76	4
77	3
78	2
79	4
80	3
81	5
82	3
83	3
84	5
85	2
86	4
87	6
88	3
89	4
90	3
91	4
92	2
93	5
94	2
95	7
96	6
97	3
98	3
99	5
100	4

[1, 1, 0, 1, 1, 2, 0, 1, 1, 0, 3, 2, 1, 2, 2, 1, 1, 2, 1, 1, 0, 2, 2, 4, 0, 4, 2, 1, 2, 3, 0, 4, 3, 2, 1, 1, 1, 1, 2, 2, 1, 3, 2, 2, 5, 1, 5, 3, 3, 4, 5, 1, 4, 1, 3, 3, 6, 4, 4, 1, 4, 4, 3, 5, 5, 5, 2, 2, 2, 4, 3, 2, 3, 3, 7, 4, 3, 2, 4, 3, 5, 3, 3, 5, 2, 4, 6, 3, 4, 3, 4, 2, 5, 2, 7, 6, 3, 3, 5, 4]

cp's OEIS Frontend

A236541 Number of ways to write 2*n = k + m with 0 < k <= m such that prime(k) + m and k + prime(m) are both prime.

Table of values

List of values

n	a(n)
1	1
2	1
3	0
4	1
5	1
6	2
7	0
8	1
9	1
10	0
11	3
12	2
13	1
14	2
15	2
16	1
17	1
18	2
19	1
20	1
21	0
22	2
23	2
24	4
25	0
26	4
27	2
28	1
29	2
30	3
31	0
32	4
33	3
34	2
35	1
36	1
37	1
38	1
39	2
40	2
41	1
42	3
43	2
44	2
45	5
46	1
47	5
48	3
49	3
50	4
51	5
52	1
53	4
54	1
55	3
56	3
57	6
58	4
59	4
60	1
61	4
62	4
63	3
64	5
65	5
66	5
67	2
68	2
69	2
70	4
71	3
72	2
73	3
74	3
75	7
76	4
77	3
78	2
79	4
80	3
81	5
82	3
83	3
84	5
85	2
86	4
87	6
88	3
89	4
90	3
91	4
92	2
93	5
94	2
95	7
96	6
97	3
98	3
99	5
100	4

n	a(n)
1	1
2	1
3	0
4	1
5	1
6	2
7	0
8	1
9	1
10	0
11	3
12	2
13	1
14	2
15	2
16	1
17	1
18	2
19	1
20	1
21	0
22	2
23	2
24	4
25	0
26	4
27	2
28	1
29	2
30	3
31	0
32	4
33	3
34	2
35	1
36	1
37	1
38	1
39	2
40	2
41	1
42	3
43	2
44	2
45	5
46	1
47	5
48	3
49	3
50	4
51	5
52	1
53	4
54	1
55	3
56	3
57	6
58	4
59	4
60	1
61	4
62	4
63	3
64	5
65	5
66	5
67	2
68	2
69	2
70	4
71	3
72	2
73	3
74	3
75	7
76	4
77	3
78	2
79	4
80	3
81	5
82	3
83	3
84	5
85	2
86	4
87	6
88	3
89	4
90	3
91	4
92	2
93	5
94	2
95	7
96	6
97	3
98	3
99	5
100	4

n	a(n)
1	1
2	1
3	0
4	1
5	1
6	2
7	0
8	1
9	1
10	0
11	3
12	2
13	1
14	2
15	2
16	1
17	1
18	2
19	1
20	1
21	0
22	2
23	2
24	4
25	0
26	4
27	2
28	1
29	2
30	3
31	0
32	4
33	3
34	2
35	1
36	1
37	1
38	1
39	2
40	2
41	1
42	3
43	2
44	2
45	5
46	1
47	5
48	3
49	3
50	4
51	5
52	1
53	4
54	1
55	3
56	3
57	6
58	4
59	4
60	1
61	4
62	4
63	3
64	5
65	5
66	5
67	2
68	2
69	2
70	4
71	3
72	2
73	3
74	3
75	7
76	4
77	3
78	2
79	4
80	3
81	5
82	3
83	3
84	5
85	2
86	4
87	6
88	3
89	4
90	3
91	4
92	2
93	5
94	2
95	7
96	6
97	3
98	3
99	5
100	4