A217470 - cp's OEIS frontend

A217470 The Diophantine equation x^2 - xy - Gy^2 = -1, G a positive integer, D = 4*G + 1 not a perfect square, has no solution precisely for G = a(n).

n	a(n)
1	5
2	8
3	11
4	14
5	17
6	19
7	23
8	26
9	29
10	32
11	33
12	35
13	38
14	40
15	41
16	44
17	47
18	50
19	51
20	52
21	53
22	54
23	55
24	59
25	61
26	62
27	63
28	65
29	68
30	71
31	74
32	75
33	76
34	77
35	80
36	82
37	83
38	85
39	86
40	89
41	92
42	94
43	95
44	96
45	98
46	101

[5, 8, 11, 14, 17, 19, 23, 26, 29, 32, 33, 35, 38, 40, 41, 44, 47, 50, 51, 52, 53, 54, 55, 59, 61, 62, 63, 65, 68, 71, 74, 75, 76, 77, 80, 82, 83, 85, 86, 89, 92, 94, 95, 96, 98, 101]

cp's OEIS Frontend

A217470 The Diophantine equation x^2 - xy - Gy^2 = -1, G a positive integer, D = 4*G + 1 not a perfect square, has no solution precisely for G = a(n).

Table of values

List of values

n	a(n)
1	5
2	8
3	11
4	14
5	17
6	19
7	23
8	26
9	29
10	32
11	33
12	35
13	38
14	40
15	41
16	44
17	47
18	50
19	51
20	52
21	53
22	54
23	55
24	59
25	61
26	62
27	63
28	65
29	68
30	71
31	74
32	75
33	76
34	77
35	80
36	82
37	83
38	85
39	86
40	89
41	92
42	94
43	95
44	96
45	98
46	101

n	a(n)
1	5
2	8
3	11
4	14
5	17
6	19
7	23
8	26
9	29
10	32
11	33
12	35
13	38
14	40
15	41
16	44
17	47
18	50
19	51
20	52
21	53
22	54
23	55
24	59
25	61
26	62
27	63
28	65
29	68
30	71
31	74
32	75
33	76
34	77
35	80
36	82
37	83
38	85
39	86
40	89
41	92
42	94
43	95
44	96
45	98
46	101

cp's OEIS Frontend

A217470 The Diophantine equation x^2 - x*y - G*y^2 = -1, G a positive integer, D = 4*G + 1 not a perfect square, has no solution precisely for G = a(n).

Table of values

List of values

A217470 The Diophantine equation x^2 - xy - Gy^2 = -1, G a positive integer, D = 4*G + 1 not a perfect square, has no solution precisely for G = a(n).

n	a(n)
1	5
2	8
3	11
4	14
5	17
6	19
7	23
8	26
9	29
10	32
11	33
12	35
13	38
14	40
15	41
16	44
17	47
18	50
19	51
20	52
21	53
22	54
23	55
24	59
25	61
26	62
27	63
28	65
29	68
30	71
31	74
32	75
33	76
34	77
35	80
36	82
37	83
38	85
39	86
40	89
41	92
42	94
43	95
44	96
45	98
46	101