A316190 - cp's OEIS frontend

A316190 a(n) is the distance between n and the nearest prime power (in the sense of A246655) other than n.

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

[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 1, 1, 1, 2, 2, 1, 4, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 1, 4, 1, 2, 3, 2, 1, 2, 1, 2, 1, 1, 3, 1, 1, 3, 1, 2, 1, 2, 1, 2, 1, 2, 3, 2, 1, 2, 1, 2, 1, 2, 1, 2, 3]

cp's OEIS Frontend

A316190 a(n) is the distance between n and the nearest prime power (in the sense of A246655) other than n.

Table of values

List of values

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

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

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