A282542 - cp's OEIS frontend

A282542 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x,y,z,w nonnegative integers such that x + 3y + 5z and (at least) one of y,z,w are squares.

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

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

cp's OEIS Frontend

A282542 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x,y,z,w nonnegative integers such that x + 3y + 5z and (at least) one of y,z,w are squares.

Table of values

List of values

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

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

cp's OEIS Frontend

A282542 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x,y,z,w nonnegative integers such that x + 3*y + 5*z and (at least) one of y,z,w are squares.

Table of values

List of values

A282542 Number of ways to write n as x^2 + y^2 + z^2 + w^2 with x,y,z,w nonnegative integers such that x + 3y + 5z and (at least) one of y,z,w are squares.

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