A281941 - cp's OEIS frontend

A281941 Number of ways to write n as w^2 + x^2 + y^2 + z^2 with w and w + x + y + z both squares, where w,x,y,z are integers with |x| <= |y| <= |z|.

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

[1, 2, 3, 5, 4, 1, 5, 2, 3, 4, 5, 1, 3, 1, 4, 2, 2, 1, 10, 5, 2, 2, 6, 1, 7, 7, 5, 7, 4, 3, 7, 1, 3, 12, 9, 4, 2, 2, 5, 3, 5, 5, 9, 10, 1, 5, 5, 1, 5, 3, 6, 8, 2, 4, 9, 4, 4, 8, 5, 3, 3, 4, 5, 3, 4, 5, 10, 4, 1, 5, 7, 1, 7, 10, 6, 8, 3, 2, 10, 2, 1]

cp's OEIS Frontend

A281941 Number of ways to write n as w^2 + x^2 + y^2 + z^2 with w and w + x + y + z both squares, where w,x,y,z are integers with |x| <= |y| <= |z|.

Table of values

List of values

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

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

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