A084401 - cp's OEIS frontend

A084401 n-th partial product + 1 is a prime, where a(n)>1 for n>1.

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

[1, 2, 2, 3, 3, 2, 6, 3, 2, 4, 7, 7, 3, 8, 6, 2, 3, 6, 9, 6, 14, 19, 11, 4, 4, 19, 4, 13, 3, 10, 13, 15, 4, 11, 9, 2, 5, 26, 19, 52, 21, 20, 63, 4, 19, 17, 6, 29, 19, 3, 5, 51, 11, 14, 15, 7, 12, 44, 34, 7, 21, 32, 3, 22, 10, 19, 19, 7, 20, 4, 22, 4, 17, 35, 47, 40, 14, 5, 14, 36, 39, 16]

cp's OEIS Frontend

A084401 n-th partial product + 1 is a prime, where a(n)>1 for n>1.

Table of values

List of values

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

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

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