A283196 - cp's OEIS frontend

A283196 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with 2x + y and 2x + z both squares, where x,y,z are integers with |y| <= |z|, and w is a positive integer.

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

[1, 1, 1, 2, 2, 1, 3, 1, 1, 8, 1, 1, 6, 1, 3, 1, 3, 9, 2, 3, 3, 4, 4, 1, 7, 5, 2, 4, 3, 3, 6, 1, 5, 7, 1, 5, 4, 6, 4, 3, 2, 8, 3, 2, 11, 2, 6, 1, 6, 5, 1, 9, 4, 7, 11, 1, 3, 16, 1, 2, 5, 3, 14, 2, 7, 7, 4, 6, 3, 12, 6, 3, 8, 5, 2, 3, 5, 5, 9, 2]

cp's OEIS Frontend

A283196 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with 2x + y and 2x + z both squares, where x,y,z are integers with |y| <= |z|, and w is a positive integer.

Table of values

List of values

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

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

cp's OEIS Frontend

A283196 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with 2*x + y and 2*x + z both squares, where x,y,z are integers with |y| <= |z|, and w is a positive integer.

Table of values

List of values

A283196 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with 2x + y and 2x + z both squares, where x,y,z are integers with |y| <= |z|, and w is a positive integer.

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