A254063 - cp's OEIS frontend

A254063 Positive integers whose square is expressible in exactly one way as x^2 + 5xy + y^2, with 0 < x < y.

n	a(n)
1	5
2	10
3	15
4	17
5	20
6	30
7	34
8	35
9	37
10	40
11	41
12	43
13	45
14	47
15	51
16	55
17	59
18	60
19	65
20	67
21	68
22	70
23	74
24	79
25	80
26	82
27	83
28	86
29	89
30	90
31	94
32	95
33	101
34	102
35	105
36	109
37	110
38	111
39	115
40	118
41	119
42	120
43	123
44	127
45	129
46	130
47	131
48	134
49	135
50	136
51	140
52	141
53	145
54	148
55	151
56	153
57	155
58	158

[5, 10, 15, 17, 20, 30, 34, 35, 37, 40, 41, 43, 45, 47, 51, 55, 59, 60, 65, 67, 68, 70, 74, 79, 80, 82, 83, 86, 89, 90, 94, 95, 101, 102, 105, 109, 110, 111, 115, 118, 119, 120, 123, 127, 129, 130, 131, 134, 135, 136, 140, 141, 145, 148, 151, 153, 155, 158]

cp's OEIS Frontend

A254063 Positive integers whose square is expressible in exactly one way as x^2 + 5xy + y^2, with 0 < x < y.

Table of values

List of values

n	a(n)
1	5
2	10
3	15
4	17
5	20
6	30
7	34
8	35
9	37
10	40
11	41
12	43
13	45
14	47
15	51
16	55
17	59
18	60
19	65
20	67
21	68
22	70
23	74
24	79
25	80
26	82
27	83
28	86
29	89
30	90
31	94
32	95
33	101
34	102
35	105
36	109
37	110
38	111
39	115
40	118
41	119
42	120
43	123
44	127
45	129
46	130
47	131
48	134
49	135
50	136
51	140
52	141
53	145
54	148
55	151
56	153
57	155
58	158

n	a(n)
1	5
2	10
3	15
4	17
5	20
6	30
7	34
8	35
9	37
10	40
11	41
12	43
13	45
14	47
15	51
16	55
17	59
18	60
19	65
20	67
21	68
22	70
23	74
24	79
25	80
26	82
27	83
28	86
29	89
30	90
31	94
32	95
33	101
34	102
35	105
36	109
37	110
38	111
39	115
40	118
41	119
42	120
43	123
44	127
45	129
46	130
47	131
48	134
49	135
50	136
51	140
52	141
53	145
54	148
55	151
56	153
57	155
58	158

n	a(n)
1	5
2	10
3	15
4	17
5	20
6	30
7	34
8	35
9	37
10	40
11	41
12	43
13	45
14	47
15	51
16	55
17	59
18	60
19	65
20	67
21	68
22	70
23	74
24	79
25	80
26	82
27	83
28	86
29	89
30	90
31	94
32	95
33	101
34	102
35	105
36	109
37	110
38	111
39	115
40	118
41	119
42	120
43	123
44	127
45	129
46	130
47	131
48	134
49	135
50	136
51	140
52	141
53	145
54	148
55	151
56	153
57	155
58	158