A002335 - cp's OEIS frontend

A002335 Least positive integer y such that A038873(n) = x^2 - 2y^2 for some x.

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

[1, 1, 2, 1, 3, 2, 1, 5, 2, 1, 4, 6, 3, 2, 7, 4, 3, 1, 7, 4, 9, 1, 8, 5, 10, 4, 7, 3, 2, 5, 8, 12, 2, 1, 9, 11, 8, 4, 7, 2, 1, 14, 6, 9, 5, 11, 13, 2, 14, 16, 4, 11, 8, 3, 2, 7, 10, 17, 12, 11, 1, 7, 13, 10, 6, 4, 3, 1, 16, 7, 20, 13, 5, 15, 4, 12, 2, 21, 14, 11, 7, 16, 13, 18, 5, 20, 9, 1, 8, 17, 14]

cp's OEIS Frontend

A002335 Least positive integer y such that A038873(n) = x^2 - 2y^2 for some x.

Table of values

List of values

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

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

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