A132740 - cp's OEIS frontend

A132740 Largest divisor of n coprime to 10.

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

[1, 1, 3, 1, 1, 3, 7, 1, 9, 1, 11, 3, 13, 7, 3, 1, 17, 9, 19, 1, 21, 11, 23, 3, 1, 13, 27, 7, 29, 3, 31, 1, 33, 17, 7, 9, 37, 19, 39, 1, 41, 21, 43, 11, 9, 23, 47, 3, 49, 1, 51, 13, 53, 27, 11, 7, 57, 29, 59, 3, 61, 31, 63, 1, 13, 33, 67, 17, 69, 7, 71, 9, 73, 37, 3, 19, 77, 39, 79, 1, 81]

cp's OEIS Frontend

A132740 Largest divisor of n coprime to 10.

Table of values

List of values

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

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

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