A230109 - cp's OEIS frontend

A230109 Values of d such that the equation x^2 - dy^2 = 3d has integer solutions.

n	a(n)
1	3
2	7
3	12
4	13
5	19
6	21
7	27
8	28
9	31
10	39
11	43
12	48
13	52
14	57
15	61
16	63
17	67
18	73
19	75
20	76
21	84
22	91
23	93
24	97
25	103
26	108
27	109
28	111
29	112
30	117
31	124
32	127
33	129
34	133
35	139
36	147
37	151
38	156
39	157
40	163
41	171
42	172
43	175

[3, 7, 12, 13, 19, 21, 27, 28, 31, 39, 43, 48, 52, 57, 61, 63, 67, 73, 75, 76, 84, 91, 93, 97, 103, 108, 109, 111, 112, 117, 124, 127, 129, 133, 139, 147, 151, 156, 157, 163, 171, 172, 175]

cp's OEIS Frontend

A230109 Values of d such that the equation x^2 - dy^2 = 3d has integer solutions.

Table of values

List of values

n	a(n)
1	3
2	7
3	12
4	13
5	19
6	21
7	27
8	28
9	31
10	39
11	43
12	48
13	52
14	57
15	61
16	63
17	67
18	73
19	75
20	76
21	84
22	91
23	93
24	97
25	103
26	108
27	109
28	111
29	112
30	117
31	124
32	127
33	129
34	133
35	139
36	147
37	151
38	156
39	157
40	163
41	171
42	172
43	175

n	a(n)
1	3
2	7
3	12
4	13
5	19
6	21
7	27
8	28
9	31
10	39
11	43
12	48
13	52
14	57
15	61
16	63
17	67
18	73
19	75
20	76
21	84
22	91
23	93
24	97
25	103
26	108
27	109
28	111
29	112
30	117
31	124
32	127
33	129
34	133
35	139
36	147
37	151
38	156
39	157
40	163
41	171
42	172
43	175

cp's OEIS Frontend

A230109 Values of d such that the equation x^2 - d*y^2 = 3*d has integer solutions.

Table of values

List of values

A230109 Values of d such that the equation x^2 - dy^2 = 3d has integer solutions.

n	a(n)
1	3
2	7
3	12
4	13
5	19
6	21
7	27
8	28
9	31
10	39
11	43
12	48
13	52
14	57
15	61
16	63
17	67
18	73
19	75
20	76
21	84
22	91
23	93
24	97
25	103
26	108
27	109
28	111
29	112
30	117
31	124
32	127
33	129
34	133
35	139
36	147
37	151
38	156
39	157
40	163
41	171
42	172
43	175