A338272 - cp's OEIS frontend

A338272 Number of ways to write 4n + 1 as x^2 + y^2 + z^2 + w^2 (0 <= x <= y and 0 <= z <= w) such that xy + 32zw is a square.

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

[2, 3, 4, 2, 4, 4, 4, 3, 3, 3, 4, 5, 4, 3, 3, 3, 5, 4, 4, 2, 8, 6, 6, 2, 4, 6, 4, 4, 5, 4, 5, 6, 5, 1, 3, 4, 6, 6, 6, 4, 6, 3, 6, 2, 3, 4, 5, 8, 4, 3, 6, 5, 5, 3, 2, 4, 8, 4, 3, 3, 5, 6, 4, 2, 5, 10, 6, 5, 4, 3, 6, 4, 7, 5, 8, 2, 6, 6, 4, 3, 7]

cp's OEIS Frontend

A338272 Number of ways to write 4n + 1 as x^2 + y^2 + z^2 + w^2 (0 <= x <= y and 0 <= z <= w) such that xy + 32zw is a square.

Table of values

List of values

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

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

cp's OEIS Frontend

A338272 Number of ways to write 4*n + 1 as x^2 + y^2 + z^2 + w^2 (0 <= x <= y and 0 <= z <= w) such that x*y + 32*z*w is a square.

Table of values

List of values

A338272 Number of ways to write 4n + 1 as x^2 + y^2 + z^2 + w^2 (0 <= x <= y and 0 <= z <= w) such that xy + 32zw is a square.

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