A254934 - cp's OEIS frontend

A254934 Fundamental positive solution x = x1(n) of the first class of the Pell equation x^2 - 2*y^2 = -A007519(n), n>=1 (primes congruent to 1 mod 8).

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

[1, 3, 5, 3, 1, 7, 5, 7, 3, 1, 9, 13, 5, 1, 15, 7, 13, 17, 1, 11, 19, 3, 1, 17, 11, 21, 9, 7, 11, 17, 21, 5, 1, 23, 11, 27, 9, 7, 5, 3, 19, 11, 23, 27, 7, 31, 1, 13, 25, 19, 33, 7, 5, 21, 31, 25, 9, 29, 5, 15, 27, 13, 31, 11, 7, 17, 3, 37, 41, 31, 19, 25, 7, 35, 5, 17, 33, 13, 21, 19, 45, 25, 3]

cp's OEIS Frontend

A254934 Fundamental positive solution x = x1(n) of the first class of the Pell equation x^2 - 2*y^2 = -A007519(n), n>=1 (primes congruent to 1 mod 8).

Table of values

List of values

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

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

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