A236627 - cp's OEIS frontend

A236627 Number of positive integers <= sqrt(n) not dividing n.

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	1
8	0
9	1
10	1
11	2
12	0
13	2
14	1
15	1
16	1
17	3
18	1
19	3
20	1
21	2
22	2
23	3
24	0
25	3
26	3
27	3
28	2
29	4
30	1
31	4
32	2
33	3
34	3
35	3
36	1
37	5
38	4
39	4
40	2
41	5
42	2
43	5
44	3
45	3
46	4
47	5
48	1
49	5
50	4
51	5
52	4
53	6
54	3
55	5
56	3
57	5
58	5
59	6
60	1
61	6
62	5
63	4
64	4
65	6
66	4
67	7
68	5
69	6
70	4
71	7
72	2
73	7
74	6
75	5
76	5
77	6
78	4
79	7
80	3
81	6
82	7
83	8
84	3
85	7
86	7
87	7
88	5
89	8
90	3
91	7
92	6
93	7
94	7
95	7
96	3
97	8
98	6
99	6
100	5
101	9

[0, 0, 0, 0, 1, 0, 1, 0, 1, 1, 2, 0, 2, 1, 1, 1, 3, 1, 3, 1, 2, 2, 3, 0, 3, 3, 3, 2, 4, 1, 4, 2, 3, 3, 3, 1, 5, 4, 4, 2, 5, 2, 5, 3, 3, 4, 5, 1, 5, 4, 5, 4, 6, 3, 5, 3, 5, 5, 6, 1, 6, 5, 4, 4, 6, 4, 7, 5, 6, 4, 7, 2, 7, 6, 5, 5, 6, 4, 7, 3, 6, 7, 8, 3, 7, 7, 7, 5, 8, 3, 7, 6, 7, 7, 7, 3, 8, 6, 6, 5, 9]

cp's OEIS Frontend

A236627 Number of positive integers <= sqrt(n) not dividing n.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	1
8	0
9	1
10	1
11	2
12	0
13	2
14	1
15	1
16	1
17	3
18	1
19	3
20	1
21	2
22	2
23	3
24	0
25	3
26	3
27	3
28	2
29	4
30	1
31	4
32	2
33	3
34	3
35	3
36	1
37	5
38	4
39	4
40	2
41	5
42	2
43	5
44	3
45	3
46	4
47	5
48	1
49	5
50	4
51	5
52	4
53	6
54	3
55	5
56	3
57	5
58	5
59	6
60	1
61	6
62	5
63	4
64	4
65	6
66	4
67	7
68	5
69	6
70	4
71	7
72	2
73	7
74	6
75	5
76	5
77	6
78	4
79	7
80	3
81	6
82	7
83	8
84	3
85	7
86	7
87	7
88	5
89	8
90	3
91	7
92	6
93	7
94	7
95	7
96	3
97	8
98	6
99	6
100	5
101	9

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	1
8	0
9	1
10	1
11	2
12	0
13	2
14	1
15	1
16	1
17	3
18	1
19	3
20	1
21	2
22	2
23	3
24	0
25	3
26	3
27	3
28	2
29	4
30	1
31	4
32	2
33	3
34	3
35	3
36	1
37	5
38	4
39	4
40	2
41	5
42	2
43	5
44	3
45	3
46	4
47	5
48	1
49	5
50	4
51	5
52	4
53	6
54	3
55	5
56	3
57	5
58	5
59	6
60	1
61	6
62	5
63	4
64	4
65	6
66	4
67	7
68	5
69	6
70	4
71	7
72	2
73	7
74	6
75	5
76	5
77	6
78	4
79	7
80	3
81	6
82	7
83	8
84	3
85	7
86	7
87	7
88	5
89	8
90	3
91	7
92	6
93	7
94	7
95	7
96	3
97	8
98	6
99	6
100	5
101	9

n	a(n)
1	0
2	0
3	0
4	0
5	1
6	0
7	1
8	0
9	1
10	1
11	2
12	0
13	2
14	1
15	1
16	1
17	3
18	1
19	3
20	1
21	2
22	2
23	3
24	0
25	3
26	3
27	3
28	2
29	4
30	1
31	4
32	2
33	3
34	3
35	3
36	1
37	5
38	4
39	4
40	2
41	5
42	2
43	5
44	3
45	3
46	4
47	5
48	1
49	5
50	4
51	5
52	4
53	6
54	3
55	5
56	3
57	5
58	5
59	6
60	1
61	6
62	5
63	4
64	4
65	6
66	4
67	7
68	5
69	6
70	4
71	7
72	2
73	7
74	6
75	5
76	5
77	6
78	4
79	7
80	3
81	6
82	7
83	8
84	3
85	7
86	7
87	7
88	5
89	8
90	3
91	7
92	6
93	7
94	7
95	7
96	3
97	8
98	6
99	6
100	5
101	9