A254929 - cp's OEIS frontend

A254929 Fundamental positive solution y = y2(n) of the second class of the Pell equation x^2 - 2*y^2 = A007522(n), n>=1 (primes congruent to 7 mod 8).

n	a(n)
1	3
2	7
3	5
4	11
5	7
6	15
7	13
8	9
9	17
10	23
11	13
12	11
13	27
14	19
15	17
16	25
17	23
18	35
19	19
20	17
21	25
22	39
23	23
24	31
25	21
26	19
27	25
28	41
29	33
30	19
31	29
32	51
33	37
34	27
35	49
36	55
37	41
38	31
39	47
40	29
41	23
42	37
43	45
44	35
45	51
46	43
47	63
48	31
49	25
50	67

[3, 7, 5, 11, 7, 15, 13, 9, 17, 23, 13, 11, 27, 19, 17, 25, 23, 35, 19, 17, 25, 39, 23, 31, 21, 19, 25, 41, 33, 19, 29, 51, 37, 27, 49, 55, 41, 31, 47, 29, 23, 37, 45, 35, 51, 43, 63, 31, 25, 67]

cp's OEIS Frontend

A254929 Fundamental positive solution y = y2(n) of the second class of the Pell equation x^2 - 2*y^2 = A007522(n), n>=1 (primes congruent to 7 mod 8).

Table of values

List of values

n	a(n)
1	3
2	7
3	5
4	11
5	7
6	15
7	13
8	9
9	17
10	23
11	13
12	11
13	27
14	19
15	17
16	25
17	23
18	35
19	19
20	17
21	25
22	39
23	23
24	31
25	21
26	19
27	25
28	41
29	33
30	19
31	29
32	51
33	37
34	27
35	49
36	55
37	41
38	31
39	47
40	29
41	23
42	37
43	45
44	35
45	51
46	43
47	63
48	31
49	25
50	67

n	a(n)
1	3
2	7
3	5
4	11
5	7
6	15
7	13
8	9
9	17
10	23
11	13
12	11
13	27
14	19
15	17
16	25
17	23
18	35
19	19
20	17
21	25
22	39
23	23
24	31
25	21
26	19
27	25
28	41
29	33
30	19
31	29
32	51
33	37
34	27
35	49
36	55
37	41
38	31
39	47
40	29
41	23
42	37
43	45
44	35
45	51
46	43
47	63
48	31
49	25
50	67

n	a(n)
1	3
2	7
3	5
4	11
5	7
6	15
7	13
8	9
9	17
10	23
11	13
12	11
13	27
14	19
15	17
16	25
17	23
18	35
19	19
20	17
21	25
22	39
23	23
24	31
25	21
26	19
27	25
28	41
29	33
30	19
31	29
32	51
33	37
34	27
35	49
36	55
37	41
38	31
39	47
40	29
41	23
42	37
43	45
44	35
45	51
46	43
47	63
48	31
49	25
50	67