A305398 - cp's OEIS frontend

A305398 Index of the least prime not dividing p-1, where p = A073918(n) is the smallest prime such that p-1 has n distinct prime factors.

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

[1, 2, 3, 4, 5, 6, 6, 7, 7, 9, 10, 12, 11, 12, 13, 15, 16, 15, 16, 18, 19, 20, 21, 22, 22, 23, 25, 27, 26, 29, 29, 27, 31, 33, 32, 34, 36, 36, 38, 39, 35, 38, 40, 43, 38, 44, 46, 46, 45, 48, 50, 49, 49, 51, 50, 54, 54, 57, 58, 56, 57, 58, 58, 63, 62, 64, 63, 67, 64, 68, 69, 69, 70, 69, 74, 76, 71, 73, 76, 78, 80, 79, 80, 81, 84, 84, 83, 87, 88, 86, 88]

cp's OEIS Frontend

A305398 Index of the least prime not dividing p-1, where p = A073918(n) is the smallest prime such that p-1 has n distinct prime factors.

Table of values

List of values

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

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

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