A072532 - cp's OEIS frontend

A072532 a(0)=1; for n>0, a(n) = smallest prime of the form k*a(n-1)-1 with k>1.

n	a(n)
0	1
1	2
2	3
3	5
4	19
5	37
6	73
7	1021
8	8167
9	16333
10	326659
11	3919907
12	47038883
13	188155531
14	2257866371
15	76767456613
16	1535349132259
17	12282793058071
18	147393516696851
19	4127018467511827
20	107302480155307501
21	1502234722174305013

[1, 2, 3, 5, 19, 37, 73, 1021, 8167, 16333, 326659, 3919907, 47038883, 188155531, 2257866371, 76767456613, 1535349132259, 12282793058071, 147393516696851, 4127018467511827, 107302480155307501, 1502234722174305013]

cp's OEIS Frontend

A072532 a(0)=1; for n>0, a(n) = smallest prime of the form k*a(n-1)-1 with k>1.

Table of values

List of values