A355822 - cp's OEIS frontend

A355822 Numbers k such that A003961(k) and A276086(k) share a prime factor, where A003961 is fully multiplicative with a(p) = nextprime(p), and A276086 is primorial base exp-function.

n	a(n)
1	2
2	4
3	6
4	8
5	9
6	10
7	12
8	14
9	15
10	16
11	18
12	20
13	21
14	22
15	24
16	26
17	27
18	28
19	30
20	32
21	34
22	35
23	36
24	38
25	39
26	40
27	42
28	44
29	45
30	46
31	48
32	50
33	51
34	52
35	54
36	55
37	56
38	57
39	58
40	60
41	62
42	64
43	65
44	66
45	68
46	69
47	70
48	72
49	74
50	75
51	76
52	78
53	80
54	81
55	82
56	84
57	85
58	86
59	87
60	88
61	90
62	92
63	94
64	95
65	96
66	98
67	99
68	100
69	102
70	104
71	105
72	106
73	108
74	110
75	111
76	112
77	114
78	115

[2, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 26, 27, 28, 30, 32, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 92, 94, 95, 96, 98, 99, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 115]

cp's OEIS Frontend

A355822 Numbers k such that A003961(k) and A276086(k) share a prime factor, where A003961 is fully multiplicative with a(p) = nextprime(p), and A276086 is primorial base exp-function.

Table of values

List of values

n	a(n)
1	2
2	4
3	6
4	8
5	9
6	10
7	12
8	14
9	15
10	16
11	18
12	20
13	21
14	22
15	24
16	26
17	27
18	28
19	30
20	32
21	34
22	35
23	36
24	38
25	39
26	40
27	42
28	44
29	45
30	46
31	48
32	50
33	51
34	52
35	54
36	55
37	56
38	57
39	58
40	60
41	62
42	64
43	65
44	66
45	68
46	69
47	70
48	72
49	74
50	75
51	76
52	78
53	80
54	81
55	82
56	84
57	85
58	86
59	87
60	88
61	90
62	92
63	94
64	95
65	96
66	98
67	99
68	100
69	102
70	104
71	105
72	106
73	108
74	110
75	111
76	112
77	114
78	115

n	a(n)
1	2
2	4
3	6
4	8
5	9
6	10
7	12
8	14
9	15
10	16
11	18
12	20
13	21
14	22
15	24
16	26
17	27
18	28
19	30
20	32
21	34
22	35
23	36
24	38
25	39
26	40
27	42
28	44
29	45
30	46
31	48
32	50
33	51
34	52
35	54
36	55
37	56
38	57
39	58
40	60
41	62
42	64
43	65
44	66
45	68
46	69
47	70
48	72
49	74
50	75
51	76
52	78
53	80
54	81
55	82
56	84
57	85
58	86
59	87
60	88
61	90
62	92
63	94
64	95
65	96
66	98
67	99
68	100
69	102
70	104
71	105
72	106
73	108
74	110
75	111
76	112
77	114
78	115

n	a(n)
1	2
2	4
3	6
4	8
5	9
6	10
7	12
8	14
9	15
10	16
11	18
12	20
13	21
14	22
15	24
16	26
17	27
18	28
19	30
20	32
21	34
22	35
23	36
24	38
25	39
26	40
27	42
28	44
29	45
30	46
31	48
32	50
33	51
34	52
35	54
36	55
37	56
38	57
39	58
40	60
41	62
42	64
43	65
44	66
45	68
46	69
47	70
48	72
49	74
50	75
51	76
52	78
53	80
54	81
55	82
56	84
57	85
58	86
59	87
60	88
61	90
62	92
63	94
64	95
65	96
66	98
67	99
68	100
69	102
70	104
71	105
72	106
73	108
74	110
75	111
76	112
77	114
78	115