A320128 - cp's OEIS frontend

A320128 Number of integer solutions to a^2 + b^2 + 2c^2 + 7d^2 = n.

n	a(n)
0	1
1	4
2	6
3	8
4	12
5	8
6	8
7	18
8	14
9	24
10	40
11	32
12	40
13	40
14	32
15	28
16	36
17	64
18	46
19	72
20	72
21	16
22	56
23	40
24	40
25	88
26	72
27	80
28	82
29	64
30	44
31	64
32	86
33	96
34	128
35	144
36	64
37	64
38	136
39	44
40	136
41	160
42	80
43	144
44	128
45	120
46	92
47	128
48	104
49	164
50	158
51	96
52	168
53	80
54	144
55	160
56	168
57	108
58	104
59	232
60	108
61	168
62	192
63	82

[1, 4, 6, 8, 12, 8, 8, 18, 14, 24, 40, 32, 40, 40, 32, 28, 36, 64, 46, 72, 72, 16, 56, 40, 40, 88, 72, 80, 82, 64, 44, 64, 86, 96, 128, 144, 64, 64, 136, 44, 136, 160, 80, 144, 128, 120, 92, 128, 104, 164, 158, 96, 168, 80, 144, 160, 168, 108, 104, 232, 108, 168, 192, 82]

cp's OEIS Frontend

A320128 Number of integer solutions to a^2 + b^2 + 2c^2 + 7d^2 = n.

Table of values

List of values

n	a(n)
0	1
1	4
2	6
3	8
4	12
5	8
6	8
7	18
8	14
9	24
10	40
11	32
12	40
13	40
14	32
15	28
16	36
17	64
18	46
19	72
20	72
21	16
22	56
23	40
24	40
25	88
26	72
27	80
28	82
29	64
30	44
31	64
32	86
33	96
34	128
35	144
36	64
37	64
38	136
39	44
40	136
41	160
42	80
43	144
44	128
45	120
46	92
47	128
48	104
49	164
50	158
51	96
52	168
53	80
54	144
55	160
56	168
57	108
58	104
59	232
60	108
61	168
62	192
63	82

n	a(n)
0	1
1	4
2	6
3	8
4	12
5	8
6	8
7	18
8	14
9	24
10	40
11	32
12	40
13	40
14	32
15	28
16	36
17	64
18	46
19	72
20	72
21	16
22	56
23	40
24	40
25	88
26	72
27	80
28	82
29	64
30	44
31	64
32	86
33	96
34	128
35	144
36	64
37	64
38	136
39	44
40	136
41	160
42	80
43	144
44	128
45	120
46	92
47	128
48	104
49	164
50	158
51	96
52	168
53	80
54	144
55	160
56	168
57	108
58	104
59	232
60	108
61	168
62	192
63	82

cp's OEIS Frontend

A320128 Number of integer solutions to a^2 + b^2 + 2*c^2 + 7*d^2 = n.

Table of values

List of values

A320128 Number of integer solutions to a^2 + b^2 + 2c^2 + 7d^2 = n.

n	a(n)
0	1
1	4
2	6
3	8
4	12
5	8
6	8
7	18
8	14
9	24
10	40
11	32
12	40
13	40
14	32
15	28
16	36
17	64
18	46
19	72
20	72
21	16
22	56
23	40
24	40
25	88
26	72
27	80
28	82
29	64
30	44
31	64
32	86
33	96
34	128
35	144
36	64
37	64
38	136
39	44
40	136
41	160
42	80
43	144
44	128
45	120
46	92
47	128
48	104
49	164
50	158
51	96
52	168
53	80
54	144
55	160
56	168
57	108
58	104
59	232
60	108
61	168
62	192
63	82