A249509 - cp's OEIS frontend

A249509 Smallest number k >= A000043(n) such that kA000668(n)(k*A000668(n)+1)-1 is prime.

n	a(n)
1	2
2	3
3	5
4	7
5	25
6	19
7	20
8	42
9	96
10	190
11	134
12	164
13	650
14	852
15	1455
16	2765
17	2480
18	3960
19	5464
20	6694
21	17206
22	13118
23	13680
24	28481
25	27445
26	28821
27	101696
28	116232
29	142083
30	187376
31	250118
32	1200007

[2, 3, 5, 7, 25, 19, 20, 42, 96, 190, 134, 164, 650, 852, 1455, 2765, 2480, 3960, 5464, 6694, 17206, 13118, 13680, 28481, 27445, 28821, 101696, 116232, 142083, 187376, 250118, 1200007]

cp's OEIS Frontend

A249509 Smallest number k >= A000043(n) such that kA000668(n)(k*A000668(n)+1)-1 is prime.

Table of values

List of values

cp's OEIS Frontend

A249509 Smallest number k >= A000043(n) such that k*A000668(n)*(k*A000668(n)+1)-1 is prime.

Table of values

List of values

A249509 Smallest number k >= A000043(n) such that kA000668(n)(k*A000668(n)+1)-1 is prime.