A245226 - cp's OEIS frontend

A245226 Values of n such that the equation x^2 - n*y^2 = n has integer solutions.

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	9
7	10
8	13
9	16
10	17
11	18
12	20
13	25
14	26
15	29
16	32
17	36
18	37
19	40
20	41
21	45
22	49
23	50
24	52
25	53
26	58
27	61
28	64
29	65
30	68
31	72
32	73
33	74
34	80
35	81
36	82
37	85
38	89
39	90
40	97
41	98
42	100
43	101
44	104
45	106
46	109
47	113
48	116
49	117
50	121
51	122
52	125
53	128
54	130
55	137
56	144
57	145
58	148
59	149
60	153
61	157

[1, 2, 4, 5, 8, 9, 10, 13, 16, 17, 18, 20, 25, 26, 29, 32, 36, 37, 40, 41, 45, 49, 50, 52, 53, 58, 61, 64, 65, 68, 72, 73, 74, 80, 81, 82, 85, 89, 90, 97, 98, 100, 101, 104, 106, 109, 113, 116, 117, 121, 122, 125, 128, 130, 137, 144, 145, 148, 149, 153, 157]

cp's OEIS Frontend

A245226 Values of n such that the equation x^2 - n*y^2 = n has integer solutions.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	9
7	10
8	13
9	16
10	17
11	18
12	20
13	25
14	26
15	29
16	32
17	36
18	37
19	40
20	41
21	45
22	49
23	50
24	52
25	53
26	58
27	61
28	64
29	65
30	68
31	72
32	73
33	74
34	80
35	81
36	82
37	85
38	89
39	90
40	97
41	98
42	100
43	101
44	104
45	106
46	109
47	113
48	116
49	117
50	121
51	122
52	125
53	128
54	130
55	137
56	144
57	145
58	148
59	149
60	153
61	157

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	9
7	10
8	13
9	16
10	17
11	18
12	20
13	25
14	26
15	29
16	32
17	36
18	37
19	40
20	41
21	45
22	49
23	50
24	52
25	53
26	58
27	61
28	64
29	65
30	68
31	72
32	73
33	74
34	80
35	81
36	82
37	85
38	89
39	90
40	97
41	98
42	100
43	101
44	104
45	106
46	109
47	113
48	116
49	117
50	121
51	122
52	125
53	128
54	130
55	137
56	144
57	145
58	148
59	149
60	153
61	157

n	a(n)
1	1
2	2
3	4
4	5
5	8
6	9
7	10
8	13
9	16
10	17
11	18
12	20
13	25
14	26
15	29
16	32
17	36
18	37
19	40
20	41
21	45
22	49
23	50
24	52
25	53
26	58
27	61
28	64
29	65
30	68
31	72
32	73
33	74
34	80
35	81
36	82
37	85
38	89
39	90
40	97
41	98
42	100
43	101
44	104
45	106
46	109
47	113
48	116
49	117
50	121
51	122
52	125
53	128
54	130
55	137
56	144
57	145
58	148
59	149
60	153
61	157