A072068 - cp's OEIS frontend

A072068 Number of integer solutions to the equation 2x^2+y^2+8z^2=m for an odd number m=2n-1.

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

[2, 4, 0, 0, 10, 12, 0, 0, 16, 12, 0, 0, 10, 16, 0, 0, 16, 24, 0, 0, 32, 12, 0, 0, 18, 24, 0, 0, 16, 36, 0, 0, 32, 12, 0, 0, 16, 28, 0, 0, 34, 36, 0, 0, 48, 24, 0, 0, 16, 36, 0, 0, 32, 36, 0, 0, 32, 24, 0, 0, 26, 24, 0, 0]

cp's OEIS Frontend

A072068 Number of integer solutions to the equation 2x^2+y^2+8z^2=m for an odd number m=2n-1.

Table of values

List of values

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

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

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