A320201 - cp's OEIS frontend

A320201 Number of integer solutions to a^2 + 2b^2 + 4c^2 + 13*d^2 = n.

n	a(n)
0	1
1	2
2	2
3	4
4	4
5	4
6	8
7	8
8	6
9	6
10	8
11	4
12	8
13	14
14	4
15	12
16	20
17	16
18	18
19	28
20	24
21	20
22	36
23	24
24	16
25	30
26	32
27	16
28	32
29	28
30	16
31	36
32	30
33	32
34	32
35	56
36	28
37	36
38	52
39	24
40	56
41	40
42	24
43	20
44	40
45	32
46	32
47	48
48	40
49	42
50	50
51	56
52	42
53	64
54	52
55	64
56	48
57	40
58	80
59	28
60	60
61	80
62	52
63	52
64	44
65	80
66	40
67	108
68	88
69	32
70	100

[1, 2, 2, 4, 4, 4, 8, 8, 6, 6, 8, 4, 8, 14, 4, 12, 20, 16, 18, 28, 24, 20, 36, 24, 16, 30, 32, 16, 32, 28, 16, 36, 30, 32, 32, 56, 28, 36, 52, 24, 56, 40, 24, 20, 40, 32, 32, 48, 40, 42, 50, 56, 42, 64, 52, 64, 48, 40, 80, 28, 60, 80, 52, 52, 44, 80, 40, 108, 88, 32, 100]

cp's OEIS Frontend

A320201 Number of integer solutions to a^2 + 2b^2 + 4c^2 + 13*d^2 = n.

Table of values

List of values

n	a(n)
0	1
1	2
2	2
3	4
4	4
5	4
6	8
7	8
8	6
9	6
10	8
11	4
12	8
13	14
14	4
15	12
16	20
17	16
18	18
19	28
20	24
21	20
22	36
23	24
24	16
25	30
26	32
27	16
28	32
29	28
30	16
31	36
32	30
33	32
34	32
35	56
36	28
37	36
38	52
39	24
40	56
41	40
42	24
43	20
44	40
45	32
46	32
47	48
48	40
49	42
50	50
51	56
52	42
53	64
54	52
55	64
56	48
57	40
58	80
59	28
60	60
61	80
62	52
63	52
64	44
65	80
66	40
67	108
68	88
69	32
70	100

n	a(n)
0	1
1	2
2	2
3	4
4	4
5	4
6	8
7	8
8	6
9	6
10	8
11	4
12	8
13	14
14	4
15	12
16	20
17	16
18	18
19	28
20	24
21	20
22	36
23	24
24	16
25	30
26	32
27	16
28	32
29	28
30	16
31	36
32	30
33	32
34	32
35	56
36	28
37	36
38	52
39	24
40	56
41	40
42	24
43	20
44	40
45	32
46	32
47	48
48	40
49	42
50	50
51	56
52	42
53	64
54	52
55	64
56	48
57	40
58	80
59	28
60	60
61	80
62	52
63	52
64	44
65	80
66	40
67	108
68	88
69	32
70	100

cp's OEIS Frontend

A320201 Number of integer solutions to a^2 + 2*b^2 + 4*c^2 + 13*d^2 = n.

Table of values

List of values

A320201 Number of integer solutions to a^2 + 2b^2 + 4c^2 + 13*d^2 = n.

n	a(n)
0	1
1	2
2	2
3	4
4	4
5	4
6	8
7	8
8	6
9	6
10	8
11	4
12	8
13	14
14	4
15	12
16	20
17	16
18	18
19	28
20	24
21	20
22	36
23	24
24	16
25	30
26	32
27	16
28	32
29	28
30	16
31	36
32	30
33	32
34	32
35	56
36	28
37	36
38	52
39	24
40	56
41	40
42	24
43	20
44	40
45	32
46	32
47	48
48	40
49	42
50	50
51	56
52	42
53	64
54	52
55	64
56	48
57	40
58	80
59	28
60	60
61	80
62	52
63	52
64	44
65	80
66	40
67	108
68	88
69	32
70	100