A270969 - cp's OEIS frontend

A270969 Number of ways to write n as w^4 + x^2 + y^2 + z^2, where w, x, y and z are nonnegative integers with x <= y <= z.

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

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

cp's OEIS Frontend

A270969 Number of ways to write n as w^4 + x^2 + y^2 + z^2, where w, x, y and z are nonnegative integers with x <= y <= z.

Table of values

List of values

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

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

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