A374970 - cp's OEIS frontend

A374970 Number of ordered primitive solutions (x,y,z,w) to xy + yz + zw + wx = n with x,y,z,w >= 1.

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	4
7	0
8	6
9	4
10	8
11	0
12	22
13	0
14	12
15	16
16	22
17	0
18	36
19	0
20	42
21	24
22	20
23	0
24	76
25	16
26	24
27	32
28	62
29	0
30	104
31	0
32	66
33	40
34	32
35	48
36	146
37	0
38	36
39	48
40	140
41	0
42	152
43	0
44	102
45	120
46	44
47	0
48	220
49	36
50	120
51	64
52	122
53	0
54	196
55	80
56	204
57	72
58	56
59	0
60	380
61	0
62	60
63	176
64	178
65	96
66	248
67	0
68	162
69	88
70	280
71	0
72	444
73	0
74	72
75	208
76	182
77	120
78	296
79	0
80	396

[0, 0, 0, 1, 0, 4, 0, 6, 4, 8, 0, 22, 0, 12, 16, 22, 0, 36, 0, 42, 24, 20, 0, 76, 16, 24, 32, 62, 0, 104, 0, 66, 40, 32, 48, 146, 0, 36, 48, 140, 0, 152, 0, 102, 120, 44, 0, 220, 36, 120, 64, 122, 0, 196, 80, 204, 72, 56, 0, 380, 0, 60, 176, 178, 96, 248, 0, 162, 88, 280, 0, 444, 0, 72, 208, 182, 120, 296, 0, 396]

cp's OEIS Frontend

A374970 Number of ordered primitive solutions (x,y,z,w) to xy + yz + zw + wx = n with x,y,z,w >= 1.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	4
7	0
8	6
9	4
10	8
11	0
12	22
13	0
14	12
15	16
16	22
17	0
18	36
19	0
20	42
21	24
22	20
23	0
24	76
25	16
26	24
27	32
28	62
29	0
30	104
31	0
32	66
33	40
34	32
35	48
36	146
37	0
38	36
39	48
40	140
41	0
42	152
43	0
44	102
45	120
46	44
47	0
48	220
49	36
50	120
51	64
52	122
53	0
54	196
55	80
56	204
57	72
58	56
59	0
60	380
61	0
62	60
63	176
64	178
65	96
66	248
67	0
68	162
69	88
70	280
71	0
72	444
73	0
74	72
75	208
76	182
77	120
78	296
79	0
80	396

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	4
7	0
8	6
9	4
10	8
11	0
12	22
13	0
14	12
15	16
16	22
17	0
18	36
19	0
20	42
21	24
22	20
23	0
24	76
25	16
26	24
27	32
28	62
29	0
30	104
31	0
32	66
33	40
34	32
35	48
36	146
37	0
38	36
39	48
40	140
41	0
42	152
43	0
44	102
45	120
46	44
47	0
48	220
49	36
50	120
51	64
52	122
53	0
54	196
55	80
56	204
57	72
58	56
59	0
60	380
61	0
62	60
63	176
64	178
65	96
66	248
67	0
68	162
69	88
70	280
71	0
72	444
73	0
74	72
75	208
76	182
77	120
78	296
79	0
80	396

cp's OEIS Frontend

A374970 Number of ordered primitive solutions (x,y,z,w) to x*y + y*z + z*w + w*x = n with x,y,z,w >= 1.

Table of values

List of values

A374970 Number of ordered primitive solutions (x,y,z,w) to xy + yz + zw + wx = n with x,y,z,w >= 1.

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	4
7	0
8	6
9	4
10	8
11	0
12	22
13	0
14	12
15	16
16	22
17	0
18	36
19	0
20	42
21	24
22	20
23	0
24	76
25	16
26	24
27	32
28	62
29	0
30	104
31	0
32	66
33	40
34	32
35	48
36	146
37	0
38	36
39	48
40	140
41	0
42	152
43	0
44	102
45	120
46	44
47	0
48	220
49	36
50	120
51	64
52	122
53	0
54	196
55	80
56	204
57	72
58	56
59	0
60	380
61	0
62	60
63	176
64	178
65	96
66	248
67	0
68	162
69	88
70	280
71	0
72	444
73	0
74	72
75	208
76	182
77	120
78	296
79	0
80	396