A258139 - cp's OEIS frontend

A258139 Number of ways to write n as p^2 + q with p and q both prime.

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

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

cp's OEIS Frontend

A258139 Number of ways to write n as p^2 + q with p and q both prime.

Table of values

List of values

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

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

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