A220419 - cp's OEIS frontend

A220419 Number of ways to write n=x+y (x>0, y>0) with 2x+1, 2y-1 and x^3+2y^3 all prime.

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

[0, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 3, 1, 1, 0, 2, 1, 2, 1, 2, 1, 2, 0, 1, 1, 0, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 4, 2, 1, 1, 1, 3, 2, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 3, 3, 1, 4, 1, 1, 0, 4, 2, 2, 3, 0, 1, 3, 2, 2, 1, 0, 5, 2, 0, 0, 1, 2, 2, 2, 2, 1, 2, 2, 3, 3, 2, 0, 1, 0, 2, 2, 4, 3, 2, 1, 3, 4, 2, 3]

cp's OEIS Frontend

A220419 Number of ways to write n=x+y (x>0, y>0) with 2x+1, 2y-1 and x^3+2y^3 all prime.

Table of values

List of values

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

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

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