A218825 - cp's OEIS frontend

A218825 Number of ways to write 2n-1 as p+2q with p, q and p^2+60q^2 all prime.

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

[0, 0, 0, 0, 0, 0, 0, 0, 3, 1, 1, 3, 1, 3, 3, 1, 2, 2, 1, 2, 3, 1, 2, 3, 1, 2, 2, 1, 3, 1, 1, 3, 3, 4, 3, 1, 2, 5, 3, 1, 3, 2, 4, 3, 3, 1, 7, 4, 1, 5, 3, 5, 8, 4, 3, 4, 3, 3, 5, 4, 4, 3, 2, 3, 5, 3, 5, 7, 3, 2, 9, 4, 4, 6, 3, 3, 8, 6, 1, 4, 5, 2, 7, 1, 4, 2, 4, 5, 5, 2, 4, 4, 3, 2, 5, 4, 5, 6, 4, 1]

cp's OEIS Frontend

A218825 Number of ways to write 2n-1 as p+2q with p, q and p^2+60q^2 all prime.

Table of values

List of values

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

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

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