A046026 - cp's OEIS frontend

A046026 Smallest prime p dividing n#-1, n#, or n#+1, n squarefree.

n	a(n)
1	2
2	2
3	2
4	3
5	3
6	3
7	5
8	7
9	13
10	7
11	5
12	17
13	7
14	7
15	11
16	23
17	13
18	5
19	5
20	5
21	11
22	17
23	7
24	23
25	19
26	13
27	41
28	7
29	43
30	23
31	47
32	17
33	19
34	11
35	19
36	29
37	13
38	17
39	31
40	13
41	11
42	67
43	23
44	7
45	71
46	53
47	37
48	11
49	13
50	29
51	41
52	83
53	17
54	43
55	29
56	89
57	13
58	31
59	47
60	19
61	17
62	101
63	17
64	103
65	7
66	53
67	107
68	109
69	11
70	37
71	113
72	19

[2, 2, 2, 3, 3, 3, 5, 7, 13, 7, 5, 17, 7, 7, 11, 23, 13, 5, 5, 5, 11, 17, 7, 23, 19, 13, 41, 7, 43, 23, 47, 17, 19, 11, 19, 29, 13, 17, 31, 13, 11, 67, 23, 7, 71, 53, 37, 11, 13, 29, 41, 83, 17, 43, 29, 89, 13, 31, 47, 19, 17, 101, 17, 103, 7, 53, 107, 109, 11, 37, 113, 19]

cp's OEIS Frontend

A046026 Smallest prime p dividing n#-1, n#, or n#+1, n squarefree.

Table of values

List of values

n	a(n)
1	2
2	2
3	2
4	3
5	3
6	3
7	5
8	7
9	13
10	7
11	5
12	17
13	7
14	7
15	11
16	23
17	13
18	5
19	5
20	5
21	11
22	17
23	7
24	23
25	19
26	13
27	41
28	7
29	43
30	23
31	47
32	17
33	19
34	11
35	19
36	29
37	13
38	17
39	31
40	13
41	11
42	67
43	23
44	7
45	71
46	53
47	37
48	11
49	13
50	29
51	41
52	83
53	17
54	43
55	29
56	89
57	13
58	31
59	47
60	19
61	17
62	101
63	17
64	103
65	7
66	53
67	107
68	109
69	11
70	37
71	113
72	19

n	a(n)
1	2
2	2
3	2
4	3
5	3
6	3
7	5
8	7
9	13
10	7
11	5
12	17
13	7
14	7
15	11
16	23
17	13
18	5
19	5
20	5
21	11
22	17
23	7
24	23
25	19
26	13
27	41
28	7
29	43
30	23
31	47
32	17
33	19
34	11
35	19
36	29
37	13
38	17
39	31
40	13
41	11
42	67
43	23
44	7
45	71
46	53
47	37
48	11
49	13
50	29
51	41
52	83
53	17
54	43
55	29
56	89
57	13
58	31
59	47
60	19
61	17
62	101
63	17
64	103
65	7
66	53
67	107
68	109
69	11
70	37
71	113
72	19

n	a(n)
1	2
2	2
3	2
4	3
5	3
6	3
7	5
8	7
9	13
10	7
11	5
12	17
13	7
14	7
15	11
16	23
17	13
18	5
19	5
20	5
21	11
22	17
23	7
24	23
25	19
26	13
27	41
28	7
29	43
30	23
31	47
32	17
33	19
34	11
35	19
36	29
37	13
38	17
39	31
40	13
41	11
42	67
43	23
44	7
45	71
46	53
47	37
48	11
49	13
50	29
51	41
52	83
53	17
54	43
55	29
56	89
57	13
58	31
59	47
60	19
61	17
62	101
63	17
64	103
65	7
66	53
67	107
68	109
69	11
70	37
71	113
72	19