A134419 - cp's OEIS frontend

A134419 Numbers n for which the generalized Pell equation x^2 - n*y^2 = n(n-1)(n+1)/3 has an integer solution for x and y.

n	a(n)
1	1
2	2
3	4
4	11
5	16
6	23
7	24
8	25
9	26
10	33
11	47
12	49
13	50
14	52
15	59
16	64
17	73
18	74
19	88
20	96
21	97
22	100
23	107
24	121
25	122
26	146
27	148
28	169
29	177
30	184
31	191
32	193
33	194
34	196
35	218
36	239
37	241
38	242
39	244
40	249
41	256
42	276
43	289
44	292
45	297
46	299
47	311
48	312
49	313
50	337
51	338
52	347
53	352
54	361
55	362
56	376
57	383

[1, 2, 4, 11, 16, 23, 24, 25, 26, 33, 47, 49, 50, 52, 59, 64, 73, 74, 88, 96, 97, 100, 107, 121, 122, 146, 148, 169, 177, 184, 191, 193, 194, 196, 218, 239, 241, 242, 244, 249, 256, 276, 289, 292, 297, 299, 311, 312, 313, 337, 338, 347, 352, 361, 362, 376, 383]

cp's OEIS Frontend

A134419 Numbers n for which the generalized Pell equation x^2 - n*y^2 = n(n-1)(n+1)/3 has an integer solution for x and y.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	11
5	16
6	23
7	24
8	25
9	26
10	33
11	47
12	49
13	50
14	52
15	59
16	64
17	73
18	74
19	88
20	96
21	97
22	100
23	107
24	121
25	122
26	146
27	148
28	169
29	177
30	184
31	191
32	193
33	194
34	196
35	218
36	239
37	241
38	242
39	244
40	249
41	256
42	276
43	289
44	292
45	297
46	299
47	311
48	312
49	313
50	337
51	338
52	347
53	352
54	361
55	362
56	376
57	383

n	a(n)
1	1
2	2
3	4
4	11
5	16
6	23
7	24
8	25
9	26
10	33
11	47
12	49
13	50
14	52
15	59
16	64
17	73
18	74
19	88
20	96
21	97
22	100
23	107
24	121
25	122
26	146
27	148
28	169
29	177
30	184
31	191
32	193
33	194
34	196
35	218
36	239
37	241
38	242
39	244
40	249
41	256
42	276
43	289
44	292
45	297
46	299
47	311
48	312
49	313
50	337
51	338
52	347
53	352
54	361
55	362
56	376
57	383

n	a(n)
1	1
2	2
3	4
4	11
5	16
6	23
7	24
8	25
9	26
10	33
11	47
12	49
13	50
14	52
15	59
16	64
17	73
18	74
19	88
20	96
21	97
22	100
23	107
24	121
25	122
26	146
27	148
28	169
29	177
30	184
31	191
32	193
33	194
34	196
35	218
36	239
37	241
38	242
39	244
40	249
41	256
42	276
43	289
44	292
45	297
46	299
47	311
48	312
49	313
50	337
51	338
52	347
53	352
54	361
55	362
56	376
57	383