A085072 - cp's OEIS frontend

A085072 Smallest k such that n and n+k have the same prime signature.

n	a(n)
2	1
3	2
4	5
5	2
6	4
7	4
8	19
9	16
10	4
11	2
12	6
13	4
14	1
15	6
16	65
17	2
18	2
19	4
20	8
21	1
22	4
23	6
24	16
25	24
26	7
27	98
28	16
29	2
30	12
31	6
32	211
33	1
34	1
35	3
36	64
37	4
38	1
39	7
40	14
41	2
42	24
43	4
44	1
45	5
46	5
47	6
48	32
49	72
50	2
51	4
52	11
53	6
54	2
55	2
56	32
57	1
58	4
59	2
60	24
61	6
62	3
63	5
64	665
65	4
66	4
67	4
68	7
69	5
70	8
71	2
72	36
73	6
74	3
75	1
76	16
77	5
78	24
79	4
80	32
81	544
82	3
83	6
84	6
85	1
86	1
87	4
88	16
89	8
90	36
91	2

[1, 2, 5, 2, 4, 4, 19, 16, 4, 2, 6, 4, 1, 6, 65, 2, 2, 4, 8, 1, 4, 6, 16, 24, 7, 98, 16, 2, 12, 6, 211, 1, 1, 3, 64, 4, 1, 7, 14, 2, 24, 4, 1, 5, 5, 6, 32, 72, 2, 4, 11, 6, 2, 2, 32, 1, 4, 2, 24, 6, 3, 5, 665, 4, 4, 4, 7, 5, 8, 2, 36, 6, 3, 1, 16, 5, 24, 4, 32, 544, 3, 6, 6, 1, 1, 4, 16, 8, 36, 2]

cp's OEIS Frontend

A085072 Smallest k such that n and n+k have the same prime signature.

Table of values

List of values

n	a(n)
2	1
3	2
4	5
5	2
6	4
7	4
8	19
9	16
10	4
11	2
12	6
13	4
14	1
15	6
16	65
17	2
18	2
19	4
20	8
21	1
22	4
23	6
24	16
25	24
26	7
27	98
28	16
29	2
30	12
31	6
32	211
33	1
34	1
35	3
36	64
37	4
38	1
39	7
40	14
41	2
42	24
43	4
44	1
45	5
46	5
47	6
48	32
49	72
50	2
51	4
52	11
53	6
54	2
55	2
56	32
57	1
58	4
59	2
60	24
61	6
62	3
63	5
64	665
65	4
66	4
67	4
68	7
69	5
70	8
71	2
72	36
73	6
74	3
75	1
76	16
77	5
78	24
79	4
80	32
81	544
82	3
83	6
84	6
85	1
86	1
87	4
88	16
89	8
90	36
91	2

n	a(n)
2	1
3	2
4	5
5	2
6	4
7	4
8	19
9	16
10	4
11	2
12	6
13	4
14	1
15	6
16	65
17	2
18	2
19	4
20	8
21	1
22	4
23	6
24	16
25	24
26	7
27	98
28	16
29	2
30	12
31	6
32	211
33	1
34	1
35	3
36	64
37	4
38	1
39	7
40	14
41	2
42	24
43	4
44	1
45	5
46	5
47	6
48	32
49	72
50	2
51	4
52	11
53	6
54	2
55	2
56	32
57	1
58	4
59	2
60	24
61	6
62	3
63	5
64	665
65	4
66	4
67	4
68	7
69	5
70	8
71	2
72	36
73	6
74	3
75	1
76	16
77	5
78	24
79	4
80	32
81	544
82	3
83	6
84	6
85	1
86	1
87	4
88	16
89	8
90	36
91	2

n	a(n)
2	1
3	2
4	5
5	2
6	4
7	4
8	19
9	16
10	4
11	2
12	6
13	4
14	1
15	6
16	65
17	2
18	2
19	4
20	8
21	1
22	4
23	6
24	16
25	24
26	7
27	98
28	16
29	2
30	12
31	6
32	211
33	1
34	1
35	3
36	64
37	4
38	1
39	7
40	14
41	2
42	24
43	4
44	1
45	5
46	5
47	6
48	32
49	72
50	2
51	4
52	11
53	6
54	2
55	2
56	32
57	1
58	4
59	2
60	24
61	6
62	3
63	5
64	665
65	4
66	4
67	4
68	7
69	5
70	8
71	2
72	36
73	6
74	3
75	1
76	16
77	5
78	24
79	4
80	32
81	544
82	3
83	6
84	6
85	1
86	1
87	4
88	16
89	8
90	36
91	2