A144728 - cp's OEIS frontend

A144728 a(n) is the smallest positive integer such that b * (Product_{k=1..n} a(k)) + 1 is prime, with a(n) > a(n-1) for n >= 2, and b = 6.

n	a(n)
1	1
2	2
3	3
4	5
5	9
6	12
7	16
8	22
9	25
10	29
11	31
12	35
13	47
14	57
15	61
16	66
17	79
18	81
19	108
20	114
21	148
22	163
23	172
24	185
25	198
26	203
27	205
28	236
29	265
30	275
31	282
32	294
33	312
34	344
35	359
36	377
37	397
38	398
39	411
40	427
41	431
42	493
43	512
44	589
45	647
46	648
47	660
48	708
49	719
50	765
51	887
52	911
53	916
54	935
55	1062
56	1093
57	1102

[1, 2, 3, 5, 9, 12, 16, 22, 25, 29, 31, 35, 47, 57, 61, 66, 79, 81, 108, 114, 148, 163, 172, 185, 198, 203, 205, 236, 265, 275, 282, 294, 312, 344, 359, 377, 397, 398, 411, 427, 431, 493, 512, 589, 647, 648, 660, 708, 719, 765, 887, 911, 916, 935, 1062, 1093, 1102]

cp's OEIS Frontend

A144728 a(n) is the smallest positive integer such that b * (Product_{k=1..n} a(k)) + 1 is prime, with a(n) > a(n-1) for n >= 2, and b = 6.

Table of values

List of values