A254935 - cp's OEIS frontend

A254935 Fundamental positive solution y = y1(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	3
2	5
3	7
4	7
5	7
6	9
7	9
8	11
9	11
10	11
11	13
12	15
13	13
14	13
15	17
16	15
17	17
18	19
19	15
20	17
21	21
22	17
23	17
24	21
25	19
26	23
27	19
28	19
29	21
30	23
31	25
32	21
33	21
34	27
35	23
36	29
37	23
38	23
39	23
40	23
41	27
42	25
43	29
44	31
45	25
46	33
47	25
48	27
49	31
50	29
51	35
52	27
53	27
54	31
55	35
56	33
57	29
58	35
59	29
60	31
61	35
62	31
63	37
64	31
65	31
66	33
67	31
68	41
69	43
70	39
71	35
72	37
73	33
74	41
75	33
76	35
77	41

[3, 5, 7, 7, 7, 9, 9, 11, 11, 11, 13, 15, 13, 13, 17, 15, 17, 19, 15, 17, 21, 17, 17, 21, 19, 23, 19, 19, 21, 23, 25, 21, 21, 27, 23, 29, 23, 23, 23, 23, 27, 25, 29, 31, 25, 33, 25, 27, 31, 29, 35, 27, 27, 31, 35, 33, 29, 35, 29, 31, 35, 31, 37, 31, 31, 33, 31, 41, 43, 39, 35, 37, 33, 41, 33, 35, 41]

cp's OEIS Frontend

A254935 Fundamental positive solution y = y1(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	3
2	5
3	7
4	7
5	7
6	9
7	9
8	11
9	11
10	11
11	13
12	15
13	13
14	13
15	17
16	15
17	17
18	19
19	15
20	17
21	21
22	17
23	17
24	21
25	19
26	23
27	19
28	19
29	21
30	23
31	25
32	21
33	21
34	27
35	23
36	29
37	23
38	23
39	23
40	23
41	27
42	25
43	29
44	31
45	25
46	33
47	25
48	27
49	31
50	29
51	35
52	27
53	27
54	31
55	35
56	33
57	29
58	35
59	29
60	31
61	35
62	31
63	37
64	31
65	31
66	33
67	31
68	41
69	43
70	39
71	35
72	37
73	33
74	41
75	33
76	35
77	41

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

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