A049260 - cp's OEIS frontend

A049260 Smallest nonnegative value taken on by n*x^2 - y^2 for an infinite number of integer pairs (x, y).

n	a(n)
1	0
2	1
3	2
4	0
5	1
6	2
7	3
8	4
9	0
10	1
11	2
12	3
13	1
14	5
15	6
16	0
17	1
18	2
19	2
20	4
21	3
22	2
23	7
24	8
25	0
26	1
27	2
28	3
29	1
30	5
31	3
32	7
33	8
34	9
35	10
36	0
37	1
38	2
39	3
40	4
41	1
42	6
43	2
44	7
45	5
46	5
47	11
48	12
49	0
50	1
51	2
52	3
53	1
54	2
55	6
56	7
57	3
58	1
59	2
60	11
61	1
62	13
63	14
64	0
65	1
66	2
67	2
68	4
69	5
70	5
71	7
72	8
73	1
74	1
75	11
76	3
77	7
78	14
79	15
80	16
81	0
82	1
83	2
84	3
85	1
86	2
87	6
88	7
89	1
90	9
91	3
92	7
93	3
94	5
95	14
96	15
97	1

[0, 1, 2, 0, 1, 2, 3, 4, 0, 1, 2, 3, 1, 5, 6, 0, 1, 2, 2, 4, 3, 2, 7, 8, 0, 1, 2, 3, 1, 5, 3, 7, 8, 9, 10, 0, 1, 2, 3, 4, 1, 6, 2, 7, 5, 5, 11, 12, 0, 1, 2, 3, 1, 2, 6, 7, 3, 1, 2, 11, 1, 13, 14, 0, 1, 2, 2, 4, 5, 5, 7, 8, 1, 1, 11, 3, 7, 14, 15, 16, 0, 1, 2, 3, 1, 2, 6, 7, 1, 9, 3, 7, 3, 5, 14, 15, 1]

cp's OEIS Frontend

A049260 Smallest nonnegative value taken on by n*x^2 - y^2 for an infinite number of integer pairs (x, y).

Table of values

List of values

n	a(n)
1	0
2	1
3	2
4	0
5	1
6	2
7	3
8	4
9	0
10	1
11	2
12	3
13	1
14	5
15	6
16	0
17	1
18	2
19	2
20	4
21	3
22	2
23	7
24	8
25	0
26	1
27	2
28	3
29	1
30	5
31	3
32	7
33	8
34	9
35	10
36	0
37	1
38	2
39	3
40	4
41	1
42	6
43	2
44	7
45	5
46	5
47	11
48	12
49	0
50	1
51	2
52	3
53	1
54	2
55	6
56	7
57	3
58	1
59	2
60	11
61	1
62	13
63	14
64	0
65	1
66	2
67	2
68	4
69	5
70	5
71	7
72	8
73	1
74	1
75	11
76	3
77	7
78	14
79	15
80	16
81	0
82	1
83	2
84	3
85	1
86	2
87	6
88	7
89	1
90	9
91	3
92	7
93	3
94	5
95	14
96	15
97	1

n	a(n)
1	0
2	1
3	2
4	0
5	1
6	2
7	3
8	4
9	0
10	1
11	2
12	3
13	1
14	5
15	6
16	0
17	1
18	2
19	2
20	4
21	3
22	2
23	7
24	8
25	0
26	1
27	2
28	3
29	1
30	5
31	3
32	7
33	8
34	9
35	10
36	0
37	1
38	2
39	3
40	4
41	1
42	6
43	2
44	7
45	5
46	5
47	11
48	12
49	0
50	1
51	2
52	3
53	1
54	2
55	6
56	7
57	3
58	1
59	2
60	11
61	1
62	13
63	14
64	0
65	1
66	2
67	2
68	4
69	5
70	5
71	7
72	8
73	1
74	1
75	11
76	3
77	7
78	14
79	15
80	16
81	0
82	1
83	2
84	3
85	1
86	2
87	6
88	7
89	1
90	9
91	3
92	7
93	3
94	5
95	14
96	15
97	1

n	a(n)
1	0
2	1
3	2
4	0
5	1
6	2
7	3
8	4
9	0
10	1
11	2
12	3
13	1
14	5
15	6
16	0
17	1
18	2
19	2
20	4
21	3
22	2
23	7
24	8
25	0
26	1
27	2
28	3
29	1
30	5
31	3
32	7
33	8
34	9
35	10
36	0
37	1
38	2
39	3
40	4
41	1
42	6
43	2
44	7
45	5
46	5
47	11
48	12
49	0
50	1
51	2
52	3
53	1
54	2
55	6
56	7
57	3
58	1
59	2
60	11
61	1
62	13
63	14
64	0
65	1
66	2
67	2
68	4
69	5
70	5
71	7
72	8
73	1
74	1
75	11
76	3
77	7
78	14
79	15
80	16
81	0
82	1
83	2
84	3
85	1
86	2
87	6
88	7
89	1
90	9
91	3
92	7
93	3
94	5
95	14
96	15
97	1