A167223 - cp's OEIS frontend

A167223 Number of primes of the form n^3 - k^2, 0<=k<=A077121(n).

n	a(n)
0	0
1	0
2	1
3	3
4	0
5	3
6	3
7	3
8	7
9	1
10	3
11	6
12	9
13	6
14	7
15	11
16	1
17	20
18	13
19	5
20	19
21	11
22	8
23	15
24	15
25	0
26	17
27	22
28	11
29	22
30	16
31	7
32	39
33	28
34	8
35	29
36	1
37	12
38	31
39	22
40	16
41	46
42	33
43	13
44	32
45	30
46	13
47	58
48	43
49	0
50	47
51	22
52	28
53	49
54	39
55	20
56	47
57	51
58	18
59	44
60	32
61	21
62	84
63	63
64	0
65	70
66	38
67	28
68	113
69	45
70	23
71	43
72	66
73	46
74	52
75	63
76	28
77	78

[0, 0, 1, 3, 0, 3, 3, 3, 7, 1, 3, 6, 9, 6, 7, 11, 1, 20, 13, 5, 19, 11, 8, 15, 15, 0, 17, 22, 11, 22, 16, 7, 39, 28, 8, 29, 1, 12, 31, 22, 16, 46, 33, 13, 32, 30, 13, 58, 43, 0, 47, 22, 28, 49, 39, 20, 47, 51, 18, 44, 32, 21, 84, 63, 0, 70, 38, 28, 113, 45, 23, 43, 66, 46, 52, 63, 28, 78]

cp's OEIS Frontend

A167223 Number of primes of the form n^3 - k^2, 0<=k<=A077121(n).

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	3
4	0
5	3
6	3
7	3
8	7
9	1
10	3
11	6
12	9
13	6
14	7
15	11
16	1
17	20
18	13
19	5
20	19
21	11
22	8
23	15
24	15
25	0
26	17
27	22
28	11
29	22
30	16
31	7
32	39
33	28
34	8
35	29
36	1
37	12
38	31
39	22
40	16
41	46
42	33
43	13
44	32
45	30
46	13
47	58
48	43
49	0
50	47
51	22
52	28
53	49
54	39
55	20
56	47
57	51
58	18
59	44
60	32
61	21
62	84
63	63
64	0
65	70
66	38
67	28
68	113
69	45
70	23
71	43
72	66
73	46
74	52
75	63
76	28
77	78

n	a(n)
0	0
1	0
2	1
3	3
4	0
5	3
6	3
7	3
8	7
9	1
10	3
11	6
12	9
13	6
14	7
15	11
16	1
17	20
18	13
19	5
20	19
21	11
22	8
23	15
24	15
25	0
26	17
27	22
28	11
29	22
30	16
31	7
32	39
33	28
34	8
35	29
36	1
37	12
38	31
39	22
40	16
41	46
42	33
43	13
44	32
45	30
46	13
47	58
48	43
49	0
50	47
51	22
52	28
53	49
54	39
55	20
56	47
57	51
58	18
59	44
60	32
61	21
62	84
63	63
64	0
65	70
66	38
67	28
68	113
69	45
70	23
71	43
72	66
73	46
74	52
75	63
76	28
77	78

n	a(n)
0	0
1	0
2	1
3	3
4	0
5	3
6	3
7	3
8	7
9	1
10	3
11	6
12	9
13	6
14	7
15	11
16	1
17	20
18	13
19	5
20	19
21	11
22	8
23	15
24	15
25	0
26	17
27	22
28	11
29	22
30	16
31	7
32	39
33	28
34	8
35	29
36	1
37	12
38	31
39	22
40	16
41	46
42	33
43	13
44	32
45	30
46	13
47	58
48	43
49	0
50	47
51	22
52	28
53	49
54	39
55	20
56	47
57	51
58	18
59	44
60	32
61	21
62	84
63	63
64	0
65	70
66	38
67	28
68	113
69	45
70	23
71	43
72	66
73	46
74	52
75	63
76	28
77	78