A254763 - cp's OEIS frontend

A254763 One half of the fundamental positive solution y = y2(n) of the second class of the Pell equation x^2 - 2*y^2 = A007519(n), n>=1 (primes congruent to 1 mod 8).

n	a(n)
1	2
2	4
3	6
4	5
5	4
6	8
7	7
8	9
9	7
10	6
11	11
12	14
13	9
14	7
15	16
16	11
17	15
18	18
19	8
20	14
21	20
22	10
23	9
24	19
25	15
26	22
27	14
28	13
29	16
30	20
31	23
32	13
33	11
34	25
35	17
36	28
37	16
38	15
39	14
40	13
41	23
42	18
43	26
44	29
45	16
46	32
47	13
48	20
49	28
50	24

[2, 4, 6, 5, 4, 8, 7, 9, 7, 6, 11, 14, 9, 7, 16, 11, 15, 18, 8, 14, 20, 10, 9, 19, 15, 22, 14, 13, 16, 20, 23, 13, 11, 25, 17, 28, 16, 15, 14, 13, 23, 18, 26, 29, 16, 32, 13, 20, 28, 24]

cp's OEIS Frontend

A254763 One half of the fundamental positive solution y = y2(n) of the second 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	2
2	4
3	6
4	5
5	4
6	8
7	7
8	9
9	7
10	6
11	11
12	14
13	9
14	7
15	16
16	11
17	15
18	18
19	8
20	14
21	20
22	10
23	9
24	19
25	15
26	22
27	14
28	13
29	16
30	20
31	23
32	13
33	11
34	25
35	17
36	28
37	16
38	15
39	14
40	13
41	23
42	18
43	26
44	29
45	16
46	32
47	13
48	20
49	28
50	24

n	a(n)
1	2
2	4
3	6
4	5
5	4
6	8
7	7
8	9
9	7
10	6
11	11
12	14
13	9
14	7
15	16
16	11
17	15
18	18
19	8
20	14
21	20
22	10
23	9
24	19
25	15
26	22
27	14
28	13
29	16
30	20
31	23
32	13
33	11
34	25
35	17
36	28
37	16
38	15
39	14
40	13
41	23
42	18
43	26
44	29
45	16
46	32
47	13
48	20
49	28
50	24

n	a(n)
1	2
2	4
3	6
4	5
5	4
6	8
7	7
8	9
9	7
10	6
11	11
12	14
13	9
14	7
15	16
16	11
17	15
18	18
19	8
20	14
21	20
22	10
23	9
24	19
25	15
26	22
27	14
28	13
29	16
30	20
31	23
32	13
33	11
34	25
35	17
36	28
37	16
38	15
39	14
40	13
41	23
42	18
43	26
44	29
45	16
46	32
47	13
48	20
49	28
50	24