A283617 - cp's OEIS frontend

A283617 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x,y,z,w integers and 0 <= z <= w such that x^3 + 2*y^3 is a square.

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

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

cp's OEIS Frontend

A283617 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x,y,z,w integers and 0 <= z <= w such that x^3 + 2*y^3 is a square.

Table of values

List of values

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

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

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