A069004 - cp's OEIS frontend

A069004 Number of times n^2 + s^2 is prime for positive integers s < n.

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

[0, 1, 1, 1, 2, 2, 1, 3, 1, 4, 2, 1, 4, 3, 3, 3, 4, 3, 4, 6, 2, 4, 5, 3, 7, 6, 4, 4, 4, 4, 7, 6, 5, 6, 8, 5, 6, 7, 3, 9, 5, 5, 8, 8, 7, 9, 6, 7, 10, 8, 6, 9, 10, 5, 8, 8, 6, 10, 11, 8, 11, 10, 6, 9, 15, 5, 10, 11, 4, 11, 13, 6, 12, 10, 12, 11, 9, 8, 11, 19, 10, 15, 9, 8, 19, 11, 8, 11, 14, 15, 13]

cp's OEIS Frontend

A069004 Number of times n^2 + s^2 is prime for positive integers s < n.

Table of values

List of values

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

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

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