A301630 - cp's OEIS frontend

A301630 a(n) = distance of n-th prime to nearest prime power p^k, k=0 and k >= 2 (A025475).

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

[1, 1, 1, 1, 2, 3, 1, 3, 2, 2, 1, 5, 8, 6, 2, 4, 5, 3, 3, 7, 8, 2, 2, 8, 16, 20, 18, 14, 12, 8, 1, 3, 9, 11, 20, 18, 12, 6, 2, 4, 10, 12, 22, 24, 28, 30, 32, 20, 16, 14, 10, 4, 2, 5, 1, 7, 13, 15, 12, 8, 6, 4, 18, 22, 24, 26, 12, 6, 4, 6, 8, 2, 6, 12, 18, 22, 28, 36, 40, 48, 58, 60, 70, 72, 73, 69, 63, 55]

cp's OEIS Frontend

A301630 a(n) = distance of n-th prime to nearest prime power p^k, k=0 and k >= 2 (A025475).

Table of values

List of values

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

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

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