A110559 - cp's OEIS frontend

A110559 Least j such that jn^2 -1 and jn^2 +1 are twin primes.

n	a(n)
1	4
2	1
3	2
4	12
5	6
6	2
7	18
8	3
9	10
10	6
11	12
12	3
13	12
14	18
15	18
16	57
17	12
18	5
19	120
20	12
21	2
22	3
23	132
24	2
25	42
26	3
27	58
28	45
29	12
30	7
31	72
32	15
33	10
34	3
35	6
36	2
37	60
38	30
39	12
40	3
41	168
42	2
43	192
44	18
45	2
46	33
47	48
48	10
49	138
50	39
51	8
52	63
53	42
54	22
55	60
56	42
57	32
58	3
59	120
60	6
61	90
62	18
63	40
64	165
65	204
66	7
67	90
68	18
69	70
70	6
71	72
72	27
73	30
74	15
75	6
76	18

[4, 1, 2, 12, 6, 2, 18, 3, 10, 6, 12, 3, 12, 18, 18, 57, 12, 5, 120, 12, 2, 3, 132, 2, 42, 3, 58, 45, 12, 7, 72, 15, 10, 3, 6, 2, 60, 30, 12, 3, 168, 2, 192, 18, 2, 33, 48, 10, 138, 39, 8, 63, 42, 22, 60, 42, 32, 3, 120, 6, 90, 18, 40, 165, 204, 7, 90, 18, 70, 6, 72, 27, 30, 15, 6, 18]

cp's OEIS Frontend

A110559 Least j such that jn^2 -1 and jn^2 +1 are twin primes.

Table of values

List of values

n	a(n)
1	4
2	1
3	2
4	12
5	6
6	2
7	18
8	3
9	10
10	6
11	12
12	3
13	12
14	18
15	18
16	57
17	12
18	5
19	120
20	12
21	2
22	3
23	132
24	2
25	42
26	3
27	58
28	45
29	12
30	7
31	72
32	15
33	10
34	3
35	6
36	2
37	60
38	30
39	12
40	3
41	168
42	2
43	192
44	18
45	2
46	33
47	48
48	10
49	138
50	39
51	8
52	63
53	42
54	22
55	60
56	42
57	32
58	3
59	120
60	6
61	90
62	18
63	40
64	165
65	204
66	7
67	90
68	18
69	70
70	6
71	72
72	27
73	30
74	15
75	6
76	18

n	a(n)
1	4
2	1
3	2
4	12
5	6
6	2
7	18
8	3
9	10
10	6
11	12
12	3
13	12
14	18
15	18
16	57
17	12
18	5
19	120
20	12
21	2
22	3
23	132
24	2
25	42
26	3
27	58
28	45
29	12
30	7
31	72
32	15
33	10
34	3
35	6
36	2
37	60
38	30
39	12
40	3
41	168
42	2
43	192
44	18
45	2
46	33
47	48
48	10
49	138
50	39
51	8
52	63
53	42
54	22
55	60
56	42
57	32
58	3
59	120
60	6
61	90
62	18
63	40
64	165
65	204
66	7
67	90
68	18
69	70
70	6
71	72
72	27
73	30
74	15
75	6
76	18

cp's OEIS Frontend

A110559 Least j such that j*n^2 -1 and j*n^2 +1 are twin primes.

Table of values

List of values

A110559 Least j such that jn^2 -1 and jn^2 +1 are twin primes.

n	a(n)
1	4
2	1
3	2
4	12
5	6
6	2
7	18
8	3
9	10
10	6
11	12
12	3
13	12
14	18
15	18
16	57
17	12
18	5
19	120
20	12
21	2
22	3
23	132
24	2
25	42
26	3
27	58
28	45
29	12
30	7
31	72
32	15
33	10
34	3
35	6
36	2
37	60
38	30
39	12
40	3
41	168
42	2
43	192
44	18
45	2
46	33
47	48
48	10
49	138
50	39
51	8
52	63
53	42
54	22
55	60
56	42
57	32
58	3
59	120
60	6
61	90
62	18
63	40
64	165
65	204
66	7
67	90
68	18
69	70
70	6
71	72
72	27
73	30
74	15
75	6
76	18