A282933 - cp's OEIS frontend

A282933 Number of ways to write n as x^4 + y^2 + z^2 + w^2 with x,y,z nonnegative integers and w a positive integer such that 8y^2 - 8yz + 9z^2 is a square.

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

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

cp's OEIS Frontend

A282933 Number of ways to write n as x^4 + y^2 + z^2 + w^2 with x,y,z nonnegative integers and w a positive integer such that 8y^2 - 8yz + 9z^2 is a square.

Table of values

List of values

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

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

cp's OEIS Frontend

A282933 Number of ways to write n as x^4 + y^2 + z^2 + w^2 with x,y,z nonnegative integers and w a positive integer such that 8*y^2 - 8*y*z + 9*z^2 is a square.

Table of values

List of values

A282933 Number of ways to write n as x^4 + y^2 + z^2 + w^2 with x,y,z nonnegative integers and w a positive integer such that 8y^2 - 8yz + 9z^2 is a square.

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