A363671 - cp's OEIS frontend

A363671 Triangular array: row n lists the numbers k such that prime(n+2)-2*k is a prime.

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

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

cp's OEIS Frontend

A363671 Triangular array: row n lists the numbers k such that prime(n+2)-2*k is a prime.

Table of values

List of values

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

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

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