A113484 - cp's OEIS frontend

A113484 a(n) = smallest composite integer > n and coprime to n.

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

[4, 9, 4, 9, 6, 25, 8, 9, 10, 21, 12, 25, 14, 15, 16, 21, 18, 25, 20, 21, 22, 25, 24, 25, 26, 27, 28, 33, 30, 49, 32, 33, 34, 35, 36, 49, 38, 39, 40, 49, 42, 55, 44, 45, 46, 49, 48, 49, 50, 51, 52, 55, 54, 55, 56, 57, 58, 63, 60, 77, 62, 63, 64, 65, 66, 85, 68, 69, 70, 81, 72, 77]

cp's OEIS Frontend

A113484 a(n) = smallest composite integer > n and coprime to n.

Table of values

List of values

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

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

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