A275656 - cp's OEIS frontend

A275656 Number of ordered ways to write n as 4^k*(1+x^2+y^2)+z^2, where k,x,y,z are nonnegative integers with x <= y <= z.

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

[1, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 2, 3, 1, 1, 2, 3, 2, 2, 3, 2, 1, 1, 2, 2, 2, 2, 4, 2, 2, 1, 1, 4, 2, 2, 3, 3, 1, 2, 3, 3, 3, 1, 2, 3, 2, 1, 2, 4, 2, 3, 5, 3, 2, 3, 2, 4, 2, 1, 4, 2, 2, 2, 2, 5, 3, 3, 4, 4, 2, 1, 3, 5, 2, 3, 4, 1, 2, 1, 3]

cp's OEIS Frontend

A275656 Number of ordered ways to write n as 4^k*(1+x^2+y^2)+z^2, where k,x,y,z are nonnegative integers with x <= y <= z.

Table of values

List of values

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

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

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