A254937 - cp's OEIS frontend

A254937 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	7
2	9
3	11
4	15
5	19
6	13
7	17
8	19
9	27
10	31
11	21
12	19
13	29
14	37
15	21
16	31
17	25
18	23
19	43
20	29
21	25
22	45
23	49
24	29
25	35
26	27
27	39
28	43
29	41
30	35
31	33
32	53
33	61
34	35
35	47
36	33
37	51
38	55
39	59
40	63
41	43
42	53
43	41
44	39
45	61
46	37
47	73
48	55
49	43
50	49
51	39
52	67
53	71
54	51
55	43
56	49
57	69
58	47
59	77
60	63
61	51
62	67
63	49
64	71
65	79
66	65
67	87
68	49
69	47
70	55
71	67
72	61
73	85
74	53

[7, 9, 11, 15, 19, 13, 17, 19, 27, 31, 21, 19, 29, 37, 21, 31, 25, 23, 43, 29, 25, 45, 49, 29, 35, 27, 39, 43, 41, 35, 33, 53, 61, 35, 47, 33, 51, 55, 59, 63, 43, 53, 41, 39, 61, 37, 73, 55, 43, 49, 39, 67, 71, 51, 43, 49, 69, 47, 77, 63, 51, 67, 49, 71, 79, 65, 87, 49, 47, 55, 67, 61, 85, 53]

cp's OEIS Frontend

A254937 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	7
2	9
3	11
4	15
5	19
6	13
7	17
8	19
9	27
10	31
11	21
12	19
13	29
14	37
15	21
16	31
17	25
18	23
19	43
20	29
21	25
22	45
23	49
24	29
25	35
26	27
27	39
28	43
29	41
30	35
31	33
32	53
33	61
34	35
35	47
36	33
37	51
38	55
39	59
40	63
41	43
42	53
43	41
44	39
45	61
46	37
47	73
48	55
49	43
50	49
51	39
52	67
53	71
54	51
55	43
56	49
57	69
58	47
59	77
60	63
61	51
62	67
63	49
64	71
65	79
66	65
67	87
68	49
69	47
70	55
71	67
72	61
73	85
74	53

n	a(n)
1	7
2	9
3	11
4	15
5	19
6	13
7	17
8	19
9	27
10	31
11	21
12	19
13	29
14	37
15	21
16	31
17	25
18	23
19	43
20	29
21	25
22	45
23	49
24	29
25	35
26	27
27	39
28	43
29	41
30	35
31	33
32	53
33	61
34	35
35	47
36	33
37	51
38	55
39	59
40	63
41	43
42	53
43	41
44	39
45	61
46	37
47	73
48	55
49	43
50	49
51	39
52	67
53	71
54	51
55	43
56	49
57	69
58	47
59	77
60	63
61	51
62	67
63	49
64	71
65	79
66	65
67	87
68	49
69	47
70	55
71	67
72	61
73	85
74	53

n	a(n)
1	7
2	9
3	11
4	15
5	19
6	13
7	17
8	19
9	27
10	31
11	21
12	19
13	29
14	37
15	21
16	31
17	25
18	23
19	43
20	29
21	25
22	45
23	49
24	29
25	35
26	27
27	39
28	43
29	41
30	35
31	33
32	53
33	61
34	35
35	47
36	33
37	51
38	55
39	59
40	63
41	43
42	53
43	41
44	39
45	61
46	37
47	73
48	55
49	43
50	49
51	39
52	67
53	71
54	51
55	43
56	49
57	69
58	47
59	77
60	63
61	51
62	67
63	49
64	71
65	79
66	65
67	87
68	49
69	47
70	55
71	67
72	61
73	85
74	53