A178670 - cp's OEIS frontend

A178670 Number of ways to express prime(n) as (prime(n+k) + prime(n-k))/2.

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

[0, 0, 1, 0, 2, 1, 1, 0, 0, 2, 1, 1, 2, 0, 0, 2, 1, 1, 1, 3, 0, 0, 1, 1, 2, 1, 1, 1, 0, 0, 2, 2, 2, 1, 0, 1, 3, 0, 1, 3, 2, 1, 4, 2, 1, 0, 4, 0, 0, 0, 2, 0, 0, 2, 1, 1, 0, 0, 1, 0, 0, 0, 3, 4, 0, 0, 1, 1, 1, 2, 3, 3, 2, 4, 2, 2, 1, 3, 4, 4, 1, 1, 1, 3, 2, 2, 2, 1, 1, 0, 0, 1, 2, 1, 0, 0, 0, 3, 0, 2]

cp's OEIS Frontend

A178670 Number of ways to express prime(n) as (prime(n+k) + prime(n-k))/2.

Table of values

List of values

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

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

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