A154726 - cp's OEIS frontend

A154726 Triangle read by rows in which row n lists: n, in the center of the row and the pairs of prime numbers that are equidistant to n, as shown below in the example.

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

[1, 2, 3, 3, 4, 5, 3, 5, 7, 5, 6, 7, 3, 7, 11, 3, 5, 8, 11, 13, 5, 7, 9, 11, 13, 3, 7, 10, 13, 17, 3, 5, 11, 17, 19, 5, 7, 11, 12, 13, 17, 19, 3, 7, 13, 19, 23, 5, 11, 14, 17, 23, 7, 11, 13, 15, 17, 19, 23, 3, 13, 16, 19, 29, 3, 5, 11, 17, 23, 29]

cp's OEIS Frontend

A154726 Triangle read by rows in which row n lists: n, in the center of the row and the pairs of prime numbers that are equidistant to n, as shown below in the example.

Table of values

List of values

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

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

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