A279612 - cp's OEIS frontend

A279612 Number of ways to write n = x^2 + y^2 + z^2 + w^2 with x + 2y - 2z a power of 4 (including 4^0 = 1), where x,y,z,w are nonnegative integers.

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

[1, 1, 1, 2, 3, 1, 1, 1, 3, 5, 2, 1, 3, 4, 1, 1, 3, 5, 5, 4, 3, 2, 3, 2, 4, 5, 1, 3, 4, 4, 1, 1, 5, 7, 7, 2, 3, 7, 3, 2, 4, 3, 4, 2, 8, 5, 1, 1, 6, 8, 3, 6, 7, 8, 2, 3, 3, 6, 8, 4, 6, 5, 2, 2, 9, 7, 7, 7, 7, 12, 3, 1, 9, 10, 7, 1, 10, 10, 2, 3]

cp's OEIS Frontend

A279612 Number of ways to write n = x^2 + y^2 + z^2 + w^2 with x + 2y - 2z a power of 4 (including 4^0 = 1), where x,y,z,w are nonnegative integers.

Table of values

List of values

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

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

cp's OEIS Frontend

A279612 Number of ways to write n = x^2 + y^2 + z^2 + w^2 with x + 2*y - 2*z a power of 4 (including 4^0 = 1), where x,y,z,w are nonnegative integers.

Table of values

List of values

A279612 Number of ways to write n = x^2 + y^2 + z^2 + w^2 with x + 2y - 2z a power of 4 (including 4^0 = 1), where x,y,z,w are nonnegative integers.

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