A366193 - cp's OEIS frontend

A366193 For n >= 0, a(n) is the least x >= 0 such that x^2 + (x + 2*n)^2 + 1 = p, p prime number (A000040).

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

[1, 0, 0, 0, 1, 0, 9, 0, 0, 6, 0, 6, 0, 0, 3, 15, 1, 2, 0, 1, 0, 6, 1, 2, 6, 3, 9, 0, 0, 6, 15, 4, 5, 0, 3, 2, 6, 0, 2, 3, 1, 9, 0, 4, 3, 0, 7, 0, 3, 1, 6, 6, 1, 5, 6, 0, 2, 6, 0, 6, 0, 1, 0, 0, 13, 0, 6, 0, 6, 3, 4, 11, 12, 0, 3, 0, 9, 3, 0, 3, 0, 21, 9, 2, 3, 0, 6, 18, 0, 3]

cp's OEIS Frontend

A366193 For n >= 0, a(n) is the least x >= 0 such that x^2 + (x + 2*n)^2 + 1 = p, p prime number (A000040).

Table of values

List of values

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

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

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