A255232 - cp's OEIS frontend

A255232 One half of the fundamental positive solution y = y1(n) of the first class of the Pell equation x^2 - 2*y^2 = -A007522(n), n >= 1 (primes congruent to 7 mod 8).

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

[1, 2, 2, 3, 3, 4, 4, 4, 5, 6, 5, 5, 7, 6, 6, 7, 7, 9, 7, 7, 8, 10, 8, 9, 8, 8, 9, 11, 10, 9, 10, 13, 11, 10, 13, 14, 12, 11, 13, 11, 11, 12, 13, 12, 14, 13, 16, 12, 12, 17, 13, 14, 13, 16, 13, 18, 14, 16, 15, 14, 17, 14, 15, 14, 14, 14, 17, 16, 19, 16, 17, 16, 20, 21, 17, 16, 17, 16, 16]

cp's OEIS Frontend

A255232 One half of the fundamental positive solution y = y1(n) of the first 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	1
2	2
3	2
4	3
5	3
6	4
7	4
8	4
9	5
10	6
11	5
12	5
13	7
14	6
15	6
16	7
17	7
18	9
19	7
20	7
21	8
22	10
23	8
24	9
25	8
26	8
27	9
28	11
29	10
30	9
31	10
32	13
33	11
34	10
35	13
36	14
37	12
38	11
39	13
40	11
41	11
42	12
43	13
44	12
45	14
46	13
47	16
48	12
49	12
50	17
51	13
52	14
53	13
54	16
55	13
56	18
57	14
58	16
59	15
60	14
61	17
62	14
63	15
64	14
65	14
66	14
67	17
68	16
69	19
70	16
71	17
72	16
73	20
74	21
75	17
76	16
77	17
78	16
79	16

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

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