A227939 - cp's OEIS frontend

A227939 Values of n such that the equation x^2 - 2ny^2 = n has integer solutions.

n	a(n)
1	1
2	3
3	4
4	9
5	11
6	12
7	16
8	19
9	25
10	27
11	33
12	36
13	43
14	44
15	48
16	49
17	51
18	57
19	59
20	64
21	67
22	73
23	75
24	76
25	81
26	83
27	89
28	99
29	100
30	107
31	108
32	121
33	123
34	129
35	131
36	132
37	139
38	144
39	147
40	163
41	169
42	171
43	172
44	176
45	177
46	179
47	187
48	192

[1, 3, 4, 9, 11, 12, 16, 19, 25, 27, 33, 36, 43, 44, 48, 49, 51, 57, 59, 64, 67, 73, 75, 76, 81, 83, 89, 99, 100, 107, 108, 121, 123, 129, 131, 132, 139, 144, 147, 163, 169, 171, 172, 176, 177, 179, 187, 192]

cp's OEIS Frontend

A227939 Values of n such that the equation x^2 - 2ny^2 = n has integer solutions.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	9
5	11
6	12
7	16
8	19
9	25
10	27
11	33
12	36
13	43
14	44
15	48
16	49
17	51
18	57
19	59
20	64
21	67
22	73
23	75
24	76
25	81
26	83
27	89
28	99
29	100
30	107
31	108
32	121
33	123
34	129
35	131
36	132
37	139
38	144
39	147
40	163
41	169
42	171
43	172
44	176
45	177
46	179
47	187
48	192

n	a(n)
1	1
2	3
3	4
4	9
5	11
6	12
7	16
8	19
9	25
10	27
11	33
12	36
13	43
14	44
15	48
16	49
17	51
18	57
19	59
20	64
21	67
22	73
23	75
24	76
25	81
26	83
27	89
28	99
29	100
30	107
31	108
32	121
33	123
34	129
35	131
36	132
37	139
38	144
39	147
40	163
41	169
42	171
43	172
44	176
45	177
46	179
47	187
48	192

cp's OEIS Frontend

A227939 Values of n such that the equation x^2 - 2*n*y^2 = n has integer solutions.

Table of values

List of values

A227939 Values of n such that the equation x^2 - 2ny^2 = n has integer solutions.

n	a(n)
1	1
2	3
3	4
4	9
5	11
6	12
7	16
8	19
9	25
10	27
11	33
12	36
13	43
14	44
15	48
16	49
17	51
18	57
19	59
20	64
21	67
22	73
23	75
24	76
25	81
26	83
27	89
28	99
29	100
30	107
31	108
32	121
33	123
34	129
35	131
36	132
37	139
38	144
39	147
40	163
41	169
42	171
43	172
44	176
45	177
46	179
47	187
48	192