A300751 - cp's OEIS frontend

A300751 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x + 3y + 5z a positive square, where x,y,z,w are nonnegative integers such that 2*x or y or z is a square.

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

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

cp's OEIS Frontend

A300751 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x + 3y + 5z a positive square, where x,y,z,w are nonnegative integers such that 2*x or y or z is a square.

Table of values

List of values

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

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

cp's OEIS Frontend

A300751 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x + 3*y + 5*z a positive square, where x,y,z,w are nonnegative integers such that 2*x or y or z is a square.

Table of values

List of values

A300751 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x + 3y + 5z a positive square, where x,y,z,w are nonnegative integers such that 2*x or y or z is a square.

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