A387129 - cp's OEIS frontend

A387129 Second numbers B = a(n) of two numbers (A, B) such that the sums 2*A^2 + B^2 = p == 3 mod 8, where p = A007520(n) and A = A387128(n).

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

[1, 3, 1, 5, 3, 7, 9, 3, 9, 11, 1, 9, 7, 15, 3, 11, 17, 13, 3, 19, 9, 21, 15, 21, 7, 19, 23, 15, 11, 3, 13, 25, 9, 21, 23, 17, 25, 19, 27, 29, 1, 5, 15, 27, 21, 13, 33, 31, 21, 17, 33, 3, 15, 29, 27, 33, 27, 1, 5, 21, 39, 37, 39, 11, 39, 13, 33, 41, 29, 17, 27, 33, 43, 15, 3, 27, 23, 9]

cp's OEIS Frontend

A387129 Second numbers B = a(n) of two numbers (A, B) such that the sums 2*A^2 + B^2 = p == 3 mod 8, where p = A007520(n) and A = A387128(n).

Table of values

List of values

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

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

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