A090369 - cp's OEIS frontend

A090369 Smallest divisor of 2n that is > 2, or 0 if no such divisor exists.

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

[0, 4, 3, 4, 5, 3, 7, 4, 3, 4, 11, 3, 13, 4, 3, 4, 17, 3, 19, 4, 3, 4, 23, 3, 5, 4, 3, 4, 29, 3, 31, 4, 3, 4, 5, 3, 37, 4, 3, 4, 41, 3, 43, 4, 3, 4, 47, 3, 7, 4, 3, 4, 53, 3, 5, 4, 3, 4, 59, 3, 61, 4, 3, 4, 5, 3, 67, 4, 3, 4, 71, 3, 73, 4, 3, 4, 7, 3, 79, 4, 3, 4, 83, 3, 5, 4, 3, 4, 89, 3, 7, 4, 3, 4, 5]

cp's OEIS Frontend

A090369 Smallest divisor of 2n that is > 2, or 0 if no such divisor exists.

Table of values

List of values

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

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

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