A354947 - cp's OEIS frontend

A354947 Number of primes adjacent to prime(n) in a hexagonal spiral of positive integers.

n	a(n)
1	2
2	2
3	0
4	2
5	1
6	1
7	0
8	2
9	1
10	1
11	1
12	2
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	0
24	1
25	0
26	1
27	1
28	0
29	1
30	1
31	0
32	1
33	1
34	1
35	1
36	1
37	0
38	1
39	0
40	1
41	1
42	1
43	1
44	0
45	1
46	1
47	1
48	1
49	1
50	1
51	0
52	0
53	1
54	1
55	0
56	0
57	0
58	1
59	2
60	0
61	1
62	0
63	0
64	0
65	0
66	0
67	2
68	1
69	0
70	0
71	1
72	0
73	0
74	1
75	1
76	0
77	1
78	1
79	0
80	0
81	0
82	1
83	0
84	1
85	0
86	1
87	1
88	0

[2, 2, 0, 2, 1, 1, 0, 2, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 2, 0, 1, 0, 0, 0, 0, 0, 2, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 0]

cp's OEIS Frontend

A354947 Number of primes adjacent to prime(n) in a hexagonal spiral of positive integers.

Table of values

List of values

n	a(n)
1	2
2	2
3	0
4	2
5	1
6	1
7	0
8	2
9	1
10	1
11	1
12	2
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	0
24	1
25	0
26	1
27	1
28	0
29	1
30	1
31	0
32	1
33	1
34	1
35	1
36	1
37	0
38	1
39	0
40	1
41	1
42	1
43	1
44	0
45	1
46	1
47	1
48	1
49	1
50	1
51	0
52	0
53	1
54	1
55	0
56	0
57	0
58	1
59	2
60	0
61	1
62	0
63	0
64	0
65	0
66	0
67	2
68	1
69	0
70	0
71	1
72	0
73	0
74	1
75	1
76	0
77	1
78	1
79	0
80	0
81	0
82	1
83	0
84	1
85	0
86	1
87	1
88	0

n	a(n)
1	2
2	2
3	0
4	2
5	1
6	1
7	0
8	2
9	1
10	1
11	1
12	2
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	0
24	1
25	0
26	1
27	1
28	0
29	1
30	1
31	0
32	1
33	1
34	1
35	1
36	1
37	0
38	1
39	0
40	1
41	1
42	1
43	1
44	0
45	1
46	1
47	1
48	1
49	1
50	1
51	0
52	0
53	1
54	1
55	0
56	0
57	0
58	1
59	2
60	0
61	1
62	0
63	0
64	0
65	0
66	0
67	2
68	1
69	0
70	0
71	1
72	0
73	0
74	1
75	1
76	0
77	1
78	1
79	0
80	0
81	0
82	1
83	0
84	1
85	0
86	1
87	1
88	0

n	a(n)
1	2
2	2
3	0
4	2
5	1
6	1
7	0
8	2
9	1
10	1
11	1
12	2
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	1
21	1
22	1
23	0
24	1
25	0
26	1
27	1
28	0
29	1
30	1
31	0
32	1
33	1
34	1
35	1
36	1
37	0
38	1
39	0
40	1
41	1
42	1
43	1
44	0
45	1
46	1
47	1
48	1
49	1
50	1
51	0
52	0
53	1
54	1
55	0
56	0
57	0
58	1
59	2
60	0
61	1
62	0
63	0
64	0
65	0
66	0
67	2
68	1
69	0
70	0
71	1
72	0
73	0
74	1
75	1
76	0
77	1
78	1
79	0
80	0
81	0
82	1
83	0
84	1
85	0
86	1
87	1
88	0