A380462 - cp's OEIS frontend

A380462 a(n) is the number of positive solutions to the Diophantine equation w^2 + x^2 + y^2 + z^2 = wxy*z such that x,y,z,w < e^n.

n	a(n)
1	1
2	2
3	2
4	3
5	4
6	6
7	6
8	7
9	10
10	12
11	16
12	17
13	18
14	23
15	25
16	32
17	35
18	39
19	43
20	47
21	55
22	60
23	64
24	73
25	76
26	86
27	94
28	101
29	111
30	118
31	132
32	141
33	150
34	159
35	168
36	180
37	192
38	203
39	220
40	235
41	247
42	261
43	275
44	289
45	302
46	324
47	340
48	361
49	376
50	394
51	413
52	433
53	454
54	472
55	498
56	518
57	536
58	560
59	584
60	606
61	632
62	658
63	684

[1, 2, 2, 3, 4, 6, 6, 7, 10, 12, 16, 17, 18, 23, 25, 32, 35, 39, 43, 47, 55, 60, 64, 73, 76, 86, 94, 101, 111, 118, 132, 141, 150, 159, 168, 180, 192, 203, 220, 235, 247, 261, 275, 289, 302, 324, 340, 361, 376, 394, 413, 433, 454, 472, 498, 518, 536, 560, 584, 606, 632, 658, 684]

cp's OEIS Frontend

A380462 a(n) is the number of positive solutions to the Diophantine equation w^2 + x^2 + y^2 + z^2 = wxy*z such that x,y,z,w < e^n.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	3
5	4
6	6
7	6
8	7
9	10
10	12
11	16
12	17
13	18
14	23
15	25
16	32
17	35
18	39
19	43
20	47
21	55
22	60
23	64
24	73
25	76
26	86
27	94
28	101
29	111
30	118
31	132
32	141
33	150
34	159
35	168
36	180
37	192
38	203
39	220
40	235
41	247
42	261
43	275
44	289
45	302
46	324
47	340
48	361
49	376
50	394
51	413
52	433
53	454
54	472
55	498
56	518
57	536
58	560
59	584
60	606
61	632
62	658
63	684

n	a(n)
1	1
2	2
3	2
4	3
5	4
6	6
7	6
8	7
9	10
10	12
11	16
12	17
13	18
14	23
15	25
16	32
17	35
18	39
19	43
20	47
21	55
22	60
23	64
24	73
25	76
26	86
27	94
28	101
29	111
30	118
31	132
32	141
33	150
34	159
35	168
36	180
37	192
38	203
39	220
40	235
41	247
42	261
43	275
44	289
45	302
46	324
47	340
48	361
49	376
50	394
51	413
52	433
53	454
54	472
55	498
56	518
57	536
58	560
59	584
60	606
61	632
62	658
63	684

cp's OEIS Frontend

A380462 a(n) is the number of positive solutions to the Diophantine equation w^2 + x^2 + y^2 + z^2 = w*x*y*z such that x,y,z,w < e^n.

Table of values

List of values

A380462 a(n) is the number of positive solutions to the Diophantine equation w^2 + x^2 + y^2 + z^2 = wxy*z such that x,y,z,w < e^n.

n	a(n)
1	1
2	2
3	2
4	3
5	4
6	6
7	6
8	7
9	10
10	12
11	16
12	17
13	18
14	23
15	25
16	32
17	35
18	39
19	43
20	47
21	55
22	60
23	64
24	73
25	76
26	86
27	94
28	101
29	111
30	118
31	132
32	141
33	150
34	159
35	168
36	180
37	192
38	203
39	220
40	235
41	247
42	261
43	275
44	289
45	302
46	324
47	340
48	361
49	376
50	394
51	413
52	433
53	454
54	472
55	498
56	518
57	536
58	560
59	584
60	606
61	632
62	658
63	684