A300510 - cp's OEIS frontend

A300510 Number of ways to write n^2 as 4^k*(m^2+1) + x^2 + y^2, where m is 1 or 2, and k,x,y are nonnegative integers with x <= y.

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

[0, 1, 2, 1, 3, 3, 3, 1, 4, 4, 5, 3, 5, 4, 6, 1, 3, 4, 5, 4, 7, 6, 5, 3, 8, 6, 6, 4, 5, 7, 7, 1, 5, 4, 11, 4, 7, 5, 6, 4, 6, 8, 5, 6, 12, 5, 5, 3, 6, 9, 8, 6, 7, 6, 10, 4, 7, 7, 6, 7, 5, 9, 9, 1, 8, 5, 10, 4, 9, 11, 9, 4, 11, 7, 12, 5, 8, 7, 7, 4]

cp's OEIS Frontend

A300510 Number of ways to write n^2 as 4^k*(m^2+1) + x^2 + y^2, where m is 1 or 2, and k,x,y are nonnegative integers with x <= y.

Table of values

List of values

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

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

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