A237837 - cp's OEIS frontend

A237837 Number of primes p < n such that the number of Sophie Germain primes among 1, ..., n-p is a cube.

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

[0, 0, 1, 2, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 2, 2, 2, 3, 3, 5, 5, 5, 5, 5, 5, 6, 6, 7, 7, 7, 7, 9, 9, 9, 9, 9, 9, 9, 9, 10]

cp's OEIS Frontend

A237837 Number of primes p < n such that the number of Sophie Germain primes among 1, ..., n-p is a cube.

Table of values

List of values

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

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

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