A154724 - cp's OEIS frontend

A154724 Triangle read by rows in which row n lists 2n-1 terms: n, in the center of the row and the pairs of prime numbers that are equidistant to n, with 0's inserted, as shown below in the example.

n	a(n)
1	1
2	0
3	2
4	0
5	0
6	0
7	3
8	0
9	0
10	0
11	0
12	3
13	4
14	5
15	0
16	0
17	0
18	0
19	3
20	0
21	5
22	0
23	7
24	0
25	0
26	0
27	0
28	0
29	0
30	5
31	6
32	7
33	0
34	0
35	0
36	0
37	0
38	0
39	3
40	0
41	0
42	0
43	7
44	0
45	0
46	0
47	11
48	0
49	0
50	0
51	0
52	3
53	0
54	5
55	0
56	0
57	8
58	0
59	0
60	11
61	0
62	13
63	0
64	0
65	0
66	0
67	0
68	0
69	5
70	0
71	7
72	0
73	9
74	0
75	11
76	0
77	13
78	0
79	0
80	0
81	0

[1, 0, 2, 0, 0, 0, 3, 0, 0, 0, 0, 3, 4, 5, 0, 0, 0, 0, 3, 0, 5, 0, 7, 0, 0, 0, 0, 0, 0, 5, 6, 7, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 7, 0, 0, 0, 11, 0, 0, 0, 0, 3, 0, 5, 0, 0, 8, 0, 0, 11, 0, 13, 0, 0, 0, 0, 0, 0, 5, 0, 7, 0, 9, 0, 11, 0, 13, 0, 0, 0, 0]

cp's OEIS Frontend

A154724 Triangle read by rows in which row n lists 2n-1 terms: n, in the center of the row and the pairs of prime numbers that are equidistant to n, with 0's inserted, as shown below in the example.

Table of values

List of values

n	a(n)
1	1
2	0
3	2
4	0
5	0
6	0
7	3
8	0
9	0
10	0
11	0
12	3
13	4
14	5
15	0
16	0
17	0
18	0
19	3
20	0
21	5
22	0
23	7
24	0
25	0
26	0
27	0
28	0
29	0
30	5
31	6
32	7
33	0
34	0
35	0
36	0
37	0
38	0
39	3
40	0
41	0
42	0
43	7
44	0
45	0
46	0
47	11
48	0
49	0
50	0
51	0
52	3
53	0
54	5
55	0
56	0
57	8
58	0
59	0
60	11
61	0
62	13
63	0
64	0
65	0
66	0
67	0
68	0
69	5
70	0
71	7
72	0
73	9
74	0
75	11
76	0
77	13
78	0
79	0
80	0
81	0

n	a(n)
1	1
2	0
3	2
4	0
5	0
6	0
7	3
8	0
9	0
10	0
11	0
12	3
13	4
14	5
15	0
16	0
17	0
18	0
19	3
20	0
21	5
22	0
23	7
24	0
25	0
26	0
27	0
28	0
29	0
30	5
31	6
32	7
33	0
34	0
35	0
36	0
37	0
38	0
39	3
40	0
41	0
42	0
43	7
44	0
45	0
46	0
47	11
48	0
49	0
50	0
51	0
52	3
53	0
54	5
55	0
56	0
57	8
58	0
59	0
60	11
61	0
62	13
63	0
64	0
65	0
66	0
67	0
68	0
69	5
70	0
71	7
72	0
73	9
74	0
75	11
76	0
77	13
78	0
79	0
80	0
81	0

n	a(n)
1	1
2	0
3	2
4	0
5	0
6	0
7	3
8	0
9	0
10	0
11	0
12	3
13	4
14	5
15	0
16	0
17	0
18	0
19	3
20	0
21	5
22	0
23	7
24	0
25	0
26	0
27	0
28	0
29	0
30	5
31	6
32	7
33	0
34	0
35	0
36	0
37	0
38	0
39	3
40	0
41	0
42	0
43	7
44	0
45	0
46	0
47	11
48	0
49	0
50	0
51	0
52	3
53	0
54	5
55	0
56	0
57	8
58	0
59	0
60	11
61	0
62	13
63	0
64	0
65	0
66	0
67	0
68	0
69	5
70	0
71	7
72	0
73	9
74	0
75	11
76	0
77	13
78	0
79	0
80	0
81	0