A273826 - cp's OEIS frontend

A273826 Number of ordered ways to write n as x^2 + y^2 + z^2 + w^2 with xy + yz + z*w a fourth power, where x is a positive integer, y is a nonnegative integer, and z and w are integers.

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

[1, 5, 5, 3, 8, 6, 5, 4, 2, 11, 5, 5, 10, 1, 3, 1, 9, 15, 4, 9, 2, 4, 6, 2, 13, 13, 10, 7, 8, 6, 3, 5, 9, 14, 6, 9, 13, 9, 9, 10, 13, 11, 5, 4, 14, 5, 8, 5, 6, 15, 10, 17, 14, 13, 6, 1, 18, 17, 2, 8, 8, 5, 17, 3, 23, 15, 9, 17, 10, 9]

cp's OEIS Frontend

A273826 Number of ordered ways to write n as x^2 + y^2 + z^2 + w^2 with xy + yz + z*w a fourth power, where x is a positive integer, y is a nonnegative integer, and z and w are integers.

Table of values

List of values

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

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

cp's OEIS Frontend

A273826 Number of ordered ways to write n as x^2 + y^2 + z^2 + w^2 with x*y + y*z + z*w a fourth power, where x is a positive integer, y is a nonnegative integer, and z and w are integers.

Table of values

List of values

A273826 Number of ordered ways to write n as x^2 + y^2 + z^2 + w^2 with xy + yz + z*w a fourth power, where x is a positive integer, y is a nonnegative integer, and z and w are integers.

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