A144724 - cp's OEIS frontend

A144724 a(n) is the smallest positive integer such that b * (Product_{k=1..n} a(k)) + 1 is prime, with b = 4.

n	a(n)
1	1
2	3
3	5
4	7
5	8
6	9
7	11
8	12
9	14
10	17
11	20
12	24
13	30
14	34
15	44
16	72
17	85
18	86
19	92
20	115
21	122
22	125
23	132
24	142
25	150
26	161
27	162
28	181
29	186
30	198
31	224
32	248
33	252
34	282
35	283
36	290
37	307
38	319
39	321
40	344
41	350
42	376
43	445
44	476
45	567
46	623
47	676
48	682
49	704
50	741
51	749
52	786
53	803
54	806
55	893
56	1014
57	1046
58	1079

[1, 3, 5, 7, 8, 9, 11, 12, 14, 17, 20, 24, 30, 34, 44, 72, 85, 86, 92, 115, 122, 125, 132, 142, 150, 161, 162, 181, 186, 198, 224, 248, 252, 282, 283, 290, 307, 319, 321, 344, 350, 376, 445, 476, 567, 623, 676, 682, 704, 741, 749, 786, 803, 806, 893, 1014, 1046, 1079]

cp's OEIS Frontend

A144724 a(n) is the smallest positive integer such that b * (Product_{k=1..n} a(k)) + 1 is prime, with b = 4.

Table of values

List of values