A169783 - cp's OEIS frontend

A169783 Number of solutions to a^2 + b^2 + 4*c^2 = n.

n	a(n)
0	1
1	4
2	4
3	0
4	6
5	16
6	8
7	0
8	12
9	20
10	8
11	0
12	8
13	16
14	16
15	0
16	6
17	32
18	12
19	0
20	24
21	32
22	8
23	0
24	24
25	20
26	24
27	0
28	0
29	48
30	16
31	0
32	12
33	32
34	16
35	0
36	30
37	16
38	24
39	0
40	24
41	64
42	16
43	0
44	24
45	48
46	16
47	0
48	8
49	36
50	28
51	0
52	24
53	48
54	32
55	0
56	48
57	32
58	8
59	0
60	0
61	48
62	32
63	0
64	6
65	64
66	32
67	0
68	48
69	64
70	16
71	0
72	36
73	32
74	40
75	0
76	24
77	64
78	16
79	0
80	24
81	68

[1, 4, 4, 0, 6, 16, 8, 0, 12, 20, 8, 0, 8, 16, 16, 0, 6, 32, 12, 0, 24, 32, 8, 0, 24, 20, 24, 0, 0, 48, 16, 0, 12, 32, 16, 0, 30, 16, 24, 0, 24, 64, 16, 0, 24, 48, 16, 0, 8, 36, 28, 0, 24, 48, 32, 0, 48, 32, 8, 0, 0, 48, 32, 0, 6, 64, 32, 0, 48, 64, 16, 0, 36, 32, 40, 0, 24, 64, 16, 0, 24, 68]

cp's OEIS Frontend

A169783 Number of solutions to a^2 + b^2 + 4*c^2 = n.

Table of values

List of values

n	a(n)
0	1
1	4
2	4
3	0
4	6
5	16
6	8
7	0
8	12
9	20
10	8
11	0
12	8
13	16
14	16
15	0
16	6
17	32
18	12
19	0
20	24
21	32
22	8
23	0
24	24
25	20
26	24
27	0
28	0
29	48
30	16
31	0
32	12
33	32
34	16
35	0
36	30
37	16
38	24
39	0
40	24
41	64
42	16
43	0
44	24
45	48
46	16
47	0
48	8
49	36
50	28
51	0
52	24
53	48
54	32
55	0
56	48
57	32
58	8
59	0
60	0
61	48
62	32
63	0
64	6
65	64
66	32
67	0
68	48
69	64
70	16
71	0
72	36
73	32
74	40
75	0
76	24
77	64
78	16
79	0
80	24
81	68

n	a(n)
0	1
1	4
2	4
3	0
4	6
5	16
6	8
7	0
8	12
9	20
10	8
11	0
12	8
13	16
14	16
15	0
16	6
17	32
18	12
19	0
20	24
21	32
22	8
23	0
24	24
25	20
26	24
27	0
28	0
29	48
30	16
31	0
32	12
33	32
34	16
35	0
36	30
37	16
38	24
39	0
40	24
41	64
42	16
43	0
44	24
45	48
46	16
47	0
48	8
49	36
50	28
51	0
52	24
53	48
54	32
55	0
56	48
57	32
58	8
59	0
60	0
61	48
62	32
63	0
64	6
65	64
66	32
67	0
68	48
69	64
70	16
71	0
72	36
73	32
74	40
75	0
76	24
77	64
78	16
79	0
80	24
81	68

n	a(n)
0	1
1	4
2	4
3	0
4	6
5	16
6	8
7	0
8	12
9	20
10	8
11	0
12	8
13	16
14	16
15	0
16	6
17	32
18	12
19	0
20	24
21	32
22	8
23	0
24	24
25	20
26	24
27	0
28	0
29	48
30	16
31	0
32	12
33	32
34	16
35	0
36	30
37	16
38	24
39	0
40	24
41	64
42	16
43	0
44	24
45	48
46	16
47	0
48	8
49	36
50	28
51	0
52	24
53	48
54	32
55	0
56	48
57	32
58	8
59	0
60	0
61	48
62	32
63	0
64	6
65	64
66	32
67	0
68	48
69	64
70	16
71	0
72	36
73	32
74	40
75	0
76	24
77	64
78	16
79	0
80	24
81	68