A245730 - cp's OEIS frontend

A245730 Primes of the form 1+2^k+2^(2k)+...+2^((j-1)k) for some k>0, j>0.

n	a(n)
1	3
2	5
3	7
4	17
5	31
6	73
7	127
8	257
9	8191
10	65537
11	131071
12	262657
13	524287
14	2147483647
15	4432676798593
16	2305843009213693951
17	618970019642690137449562111
18	162259276829213363391578010288127
19	170141183460469231731687303715884105727

[3, 5, 7, 17, 31, 73, 127, 257, 8191, 65537, 131071, 262657, 524287, 2147483647, 4432676798593, 2305843009213693951, 618970019642690137449562111, 162259276829213363391578010288127, 170141183460469231731687303715884105727]

cp's OEIS Frontend

A245730 Primes of the form 1+2^k+2^(2k)+...+2^((j-1)k) for some k>0, j>0.

Table of values

List of values

cp's OEIS Frontend

A245730 Primes of the form 1+2^k+2^(2*k)+...+2^((j-1)*k) for some k>0, j>0.

Table of values

List of values

A245730 Primes of the form 1+2^k+2^(2k)+...+2^((j-1)k) for some k>0, j>0.