A232269 - cp's OEIS frontend

A232269 Number of ways to write 2*n + 1 = x + y (x, y > 0) with x^3 + y^2 and x^2 + y^2 both prime.

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

[1, 3, 1, 2, 3, 2, 1, 6, 4, 1, 4, 6, 3, 8, 1, 1, 6, 1, 1, 9, 2, 4, 5, 3, 1, 2, 7, 4, 5, 8, 1, 12, 4, 4, 12, 3, 4, 9, 10, 1, 5, 9, 5, 11, 7, 4, 9, 2, 4, 19, 1, 1, 14, 4, 6, 16, 8, 5, 8, 7, 2, 11, 8, 1, 16, 3, 5, 9, 4, 3, 8, 8, 6, 16, 4, 3, 12, 13, 5, 11, 5, 3, 10, 10, 7, 12, 7, 4, 17, 20, 1, 17, 5, 6, 15, 4, 5, 18, 5, 7]

cp's OEIS Frontend

A232269 Number of ways to write 2*n + 1 = x + y (x, y > 0) with x^3 + y^2 and x^2 + y^2 both prime.

Table of values

List of values

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

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

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